JP2016043312A - Coating method and coating device of high-viscosity material, and high-viscosity material coating object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating method and coating device of high-viscosity material, and high-viscosity material coating object which can efficiently improve waterproofness, rust-prevention, and aesthetic design while maintaining assemblability of an overlapped part without requiring a complicated process and a large-scale facility.SOLUTION: A nozzle 10 is proceeded along an end part of an overlapped part 20 at which an end part of a second plate material 18 is overlapped with a first plate material 16, and discharges a sealer agent 14 from a discharge port 12 of the nozzle 10 to coat the overlapped part 20 with the sealer agent 14. In this case, a rear end part 10b of the nozzle 10 on a rear side from the discharge port 12 with respect to a proceeding direction of the nozzle 10 is made in contact with the sealer agent 14 discharged from the discharge port 12 to press the sealer agent 14 toward the first plate material 16 and the second plate material 18. Thereby, a coating pressure of the sealer agent 14 applied on the second plate material 18 increases than that of the first plate material 16.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a high-viscosity material coating method, a coating apparatus, and a high-viscosity material coated product, in which a high-viscosity material is coated on an end portion side of an overlapping portion in which an end portion of a second plate material is overlapped on a first plate material.

  It is known that a high-viscosity material such as a sealer is applied to a component part of an automobile body or the like on an end portion side of an overlapping portion in which an end portion of a second plate member is overlapped with a first plate member. That is, the first plate member and the second plate member are sealed while covering the end surface of the second plate member with a high-viscosity material application such as a sealer obtained by solidifying the high-viscosity material. This suppresses the ingress of water from the overlapped portion and the progress of rust, thereby improving the waterproofness and rustproofness of the overlapped portion. Therefore, the high-viscosity material application product needs to be provided in the overlapping portion so as to be continuous across the first plate member and the second plate member and to have a shape showing good sealing properties. In addition, when the high-viscosity material application is provided in a place where it can be visually recognized in the appearance of the vehicle body, it is possible to suppress the coating disorder of the high-viscosity material and improve the aesthetic design of the high-viscosity material application. Desired.

  Then, in order to improve the sealing property and aesthetic design property of a high-viscosity material application thing, the coating method of the high-viscosity material shown, for example in patent document 1 is proposed. In this coating method, after spray coating, flow coat coating is performed in which the discharge pressure of the high-viscosity material is lower than that of the spray coating. That is, first, the high-viscosity material is filled in the gap between the first plate member and the second plate member by spray coating with a high discharge pressure. At this time, since the discharge pressure is large, the collision energy between the first plate member and the second plate member (especially, the edge portion of the second plate member) and the high-viscosity material is increased, and coating disturbance is likely to occur. Thus, even if application disturbance occurs during spray application, the application disturbance can be covered with a high-viscosity material by further applying flow coating. As a result, a high-viscosity material coated product with improved sealing properties and aesthetic design properties can be obtained.

JP-A-5-50021

  By the way, when the volume of the high-viscosity material application provided in the overlapping portion increases more than necessary, the high-viscosity material application and other components such as an automobile body easily interfere with each other in the overlapping portion. As a result, there is a concern that the assembling property of the member including the overlapping portion such as the automobile body may be lowered. Therefore, the volume of the high-viscosity material application is required to be as small as possible within a range in which the sealability of the high-viscosity material application can be maintained satisfactorily.

  However, in the above high viscosity material coating method, both spray coating and flow coat coating are performed, so that the volume of the high viscosity material coating tends to increase. That is, it is difficult to reduce the volume of the high-viscosity material application as much as possible and maintain the assembling property and the aesthetic design property of the overlapping portion. Moreover, since it is necessary to perform spray coating and flow coating respectively, there is a concern that the coating process becomes complicated and the coating apparatus becomes large.

  The present invention was made to solve the above-mentioned problems, and does not require a complicated process or large-scale equipment, while maintaining the assembling property of the overlapped portion, waterproofness, rust prevention, and aesthetic design. It is an object to provide a high-viscosity material coating method and apparatus and a high-viscosity material coating product that can effectively improve the viscosity.

  In order to achieve the above object, the present invention advances a nozzle along the end portion of the overlapping portion in which the end portion of the second plate material is overlapped with the first plate material, and the high viscosity material from the discharge port of the nozzle. A high-viscosity material application method in which the high-viscosity material is applied to the overlapping portion, and the front end portion of the nozzle that is on the front side of the discharge port with respect to the traveling direction of the nozzle And among the rear end portions of the nozzle on the rear side, the rear end portion is brought into contact with the high-viscosity material discharged from the discharge port, and the height toward the first plate member and the second plate member is increased. By pressing the viscous material, the application pressure of the high-viscosity material applied to the second plate material is made larger than that of the first plate material.

  In this high-viscosity material application method, the rear end portion of the nozzle is brought into contact with the high-viscosity material discharged from the discharge port, so that the high-viscosity material is placed between the rear end portion and each of the first plate member and the second plate member. The nozzle can be advanced while filling and pressing the viscous material. At this time, a pressing force is applied to each of the first plate member and the second plate member through the high viscosity material. This pressing force is greater on the second plate side closer to the rear end of the nozzle than the first plate. In other words, the application pressure of the high-viscosity material applied to the second plate material is larger than that of the first plate material. The application pressure here does not mean the discharge pressure of the high-viscosity material discharged from the discharge port, but means the pressing force of the high-viscosity material against the first plate and the second plate as described above.

  For this reason, between the rear end portion of the nozzle and the first plate member and the second plate member, the flow of the high-viscosity material occurs from the second plate member having a high application pressure toward the first plate member having a low application pressure. . As a result, the volume (thickness) of the high-viscosity material on the second plate can be reduced, and this reduction can be made an increase in the volume of the high-viscosity material on the first plate. As a result, the upper ends of the high-viscosity materials are leveled on the first plate and the second plate so that the upper surfaces of the high-viscosity materials applied to the first plate and the second plate are substantially flush with each other. However, the high viscosity material can be applied by advancing the nozzle.

  In addition, as described above, the nozzle outlet and the first nozzle are disposed to the extent that the high-viscosity material can be filled and pressed between the rear end portion of the nozzle and each of the first plate member and the second plate member. The 1 plate material and the 2nd plate material are made to approach. For this reason, it is possible to effectively apply the high-viscosity material to the overlapping portion without increasing the discharge pressure of the high-viscosity material from the nozzle more than necessary. Therefore, it is possible to suppress an increase in collision energy between the high-viscosity material and the first plate member and the second plate member, and it is possible to suppress the occurrence of coating disturbance of the high-viscosity material.

  A high-viscosity material coated product is obtained by solidifying the high-viscosity material applied as described above. That is, in the high-viscosity material coated material, the volume of the portion provided on the second plate member (hereinafter also referred to as the second plate member portion) is reduced. As described above, the overlapping portion is formed by overlapping the end portion of the second plate material above the first plate material (the side on which the high-viscosity material is applied). For this reason, it can avoid that the maximum thickness of the superimposition part in which the high-viscosity material application material was provided increases more than necessary by reducing the volume of the site | part on a 2nd board | plate material. That is, it can suppress effectively that the assembly | attachment property of the overlap part with respect to another member falls.

  In this high-viscosity material application, the volume of the portion covering the end surface of the second plate member on the first plate member (hereinafter also referred to as the first plate member portion) is increased by the amount that the volume of the second plate member portion is reduced. ing. That is, the volume of the site | part which seals between the 1st board | plate material and the 2nd board | plate material among high viscosity material application objects can be increased. Therefore, as described above, even if the volume of the high-viscosity material application is reduced to avoid an increase in the maximum thickness of the overlapping portion, the sealing performance between the first plate and the second plate is reduced. You can avoid that. That is, it is possible to effectively improve waterproofness and rustproofness while maintaining the assembly property of the overlapping portion.

  In addition, when applying a high viscosity material, the upper end is leveled as described above, and application disturbance is suppressed. Thereby, an upper surface consists of a plane which straddles a 1st board | plate material and a 2nd board | plate material, and a high-viscosity material application body with favorable aesthetic design property can be obtained. That is, it is possible to effectively improve the aesthetic design of the overlapping portion.

  Furthermore, in this high-viscosity material coated material, at least a part of the side surface between the upper surface and the main surface of the first plate member is substantially orthogonal to the upper surface or the main surface of the first plate member. That is, in this high-viscosity material application, the ratio of the maximum length of the high-viscosity material application extending from the end surface of the second plate to the first plate relative to the volume of the first plate material portion can be reduced. it can. Therefore, the sealing performance per volume of the high-viscosity material application can be improved satisfactorily, and the waterproofness and rustproofness of the overlapping portion can be effectively improved while reducing the consumption of the high-viscosity material. it can. Moreover, also about the surface direction of a 1st board | plate material and a 2nd board | plate material, interference with a high-viscosity material application material and another member can be suppressed, and it can suppress that the assembly | attachment property of a superposition part falls.

  As described above, the high viscosity material application method of the present invention has a simple configuration in which application is performed while the rear end of the nozzle is in contact with the high viscosity material, while maintaining the ease of assembly of the overlapped portion, It is possible to obtain a high-viscosity material coated product that can effectively improve rustability and aesthetic design.

  In the above high viscosity material coating method, the nozzle is advanced by inclining the discharge port by bringing the front end portion closer to the first plate member and the second plate member than the rear end portion. It is preferable. In this case, the nozzle can be advanced while effectively pressing the high viscosity material toward the first plate member and the second plate member by the rear end portion of the nozzle. Therefore, it is possible to efficiently and satisfactorily apply the high-viscosity material while applying an appropriate application pressure to each of the first plate member and the second plate member.

  In the high viscosity material coating method, it is preferable that the nozzle is advanced by bringing the front end portion into contact with the main surface of the second plate member. That is, the part which advances on the 2nd board | plate material among the front-end | tip parts of a nozzle is made to contact the main surface of this 2nd board | plate material. Thereby, it becomes easy to advance the nozzle while appropriately maintaining the distance between the discharge port of the nozzle and the first plate member and the second plate member. As a result, the magnitude of the application pressure applied to each of the first plate material and the second plate material can be set easily and with high accuracy, and the occurrence of application disturbance of the high viscosity material can be effectively suppressed.

  In the coating method of the high viscosity material, an approximate center between one end of the discharge port that will travel on the first plate and the other end of the discharge port that will travel on the second plate. A positioning pin protruding from the front end portion on a center line extending along the traveling direction of the nozzle, and sliding the side surface of the positioning pin with respect to the end surface of the second plate member of the overlapping portion. The nozzle is preferably advanced while being moved. In this case, the nozzle can be advanced while accurately applying the high-viscosity material to the first plate material side and the second plate material side around the end surface of the second plate material. That is, it becomes possible to more easily provide the high-viscosity material coated material that is continuous across the first plate material and the second plate material and exhibits good sealing properties over the entire overlapped portion.

  In the high viscosity material coating method, it is preferable that the discharge port has a rectangular shape with a short side between the front end portion and the rear end portion of the nozzle. In this case, it is possible to easily provide a high-viscosity material that is continuous with the first plate member and the second plate member by disposing the nozzle outlet so as to straddle the first plate member and the second plate member with respect to the overlapping portion. . That is, it is possible to further improve the sealing performance of the high viscosity material application. Further, in the nozzle in which the discharge port is formed, the rear end portion is brought into contact with the high-viscosity material, and the application pressure applied to each of the first plate member and the second plate member is adjusted to an appropriate magnitude, and It becomes easy to level the upper end of the high viscosity material well.

  In addition, the coating device which implements the coating method of the above-described high viscosity material is also included in the present invention. That is, the present invention includes a nozzle that discharges a high-viscosity material from a discharge port, and advances the nozzle along the end of the overlapping portion in which the end of the second plate is overlapped with the first plate, and the discharge. A high-viscosity material application apparatus that discharges the high-viscosity material from an outlet and applies the high-viscosity material to the overlapped portion, and the front side of the discharge port with respect to the traveling direction of the nozzle Among the nozzle front end and the rear end of the nozzle, the rear end is brought into contact with the high-viscosity material discharged from the discharge port, and the first plate member and the second plate member. The application pressure of the high-viscosity material applied to the second plate material is made larger than the first plate material by pressing the high-viscosity material toward the surface.

  In this high-viscosity material application apparatus, the application pressure of the high-viscosity material applied to the second plate material is made larger than the first plate material by bringing the rear end portion of the nozzle into contact with the high-viscosity material discharged from the discharge port. To do. As a result, the high-viscosity material flows from the second plate material onto the first plate material, so that the volume of the high-viscosity material on the second plate material is reduced, and this reduction is reduced by the high-viscosity material on the first plate material. It can be an increase in volume. That is, the high-viscosity material can be applied while leveling the upper ends of the high-viscosity materials so that the upper surfaces of the high-viscosity materials applied to the first plate member and the second plate member are substantially flush with each other. . In the high-viscosity material coated product obtained in this manner, the volume of the portion on the second plate member is reduced, and the volume of the portion covering the end surface of the second plate member on the first plate member is increased. Further, the upper surface is a flat surface extending over the first plate material and the second plate material, and coating disturbance is suppressed.

  As described above, the high-viscosity material coating apparatus of the present invention is a high-viscosity material coated product that can effectively improve waterproofness, rust prevention, and aesthetic design while maintaining the assembly of the overlapping portion. It can be easily obtained with a simple configuration.

  In the high-viscosity material coating apparatus, the nozzle is advanced by inclining the discharge port by bringing the front end portion closer to the first plate member and the second plate member than the rear end portion. It is preferable. In this case, it becomes possible to efficiently and satisfactorily apply the high viscosity material while applying an appropriate application pressure to each of the first plate material and the second plate material.

  In the high-viscosity material coating apparatus, it is preferable that the nozzle is advanced by bringing the front end portion into contact with the main surface of the second plate member. In this case, the magnitude of the coating pressure applied to each of the first plate member and the second plate member can be set with high accuracy in the entire overlapping portion, and the occurrence of coating disturbance of the high viscosity material can be effectively suppressed.

  In the high-viscosity material coating apparatus, the front end includes one end of the discharge port that will travel on the first plate material and the other end of the discharge port that will travel on the second plate material. And a positioning pin projecting on a center line extending along the traveling direction of the nozzle, the nozzle being positioned relative to the end surface of the second plate member of the overlapping portion It is preferable to proceed while sliding the side surface of the pin. In this case, it is possible to more easily provide the high-viscosity material application material that is continuous across the first plate material and the second plate material and exhibits good sealing properties over the entire overlapped portion.

  In the high-viscosity material coating apparatus, it is preferable that the discharge port has a rectangular shape with a short side between the front end portion and the rear end portion of the nozzle. In this case, the sealing property of the high-viscosity material application can be further improved. Moreover, it becomes easy to adjust the application pressure applied to each of the first plate member and the second plate member to an appropriate magnitude, and to satisfactorily level the upper end of the high-viscosity material.

  In addition, the present invention is a high-viscosity material coated material provided by applying a high-viscosity material to the end portion side of the overlapping portion obtained by overlapping the end portion of the second plate material on the first plate material, Is a plane straddling the first plate member and the second plate member, and at least a part of the side surface between the upper surface and the main surface of the first plate member is substantially orthogonal to the upper surface or the main surface. It is characterized by.

  In this high-viscosity material application, since the upper surface is a flat surface extending over the first plate member and the second plate member, the end surface of the second plate member is covered from above the first plate member even if the volume of the portion on the second plate member is reduced. A sufficient volume of the part can be secured. That is, even if the volume of the part on the second plate member is reduced to suppress an increase in the maximum thickness of the overlapping portion, the gap between the first plate member and the second plate member can be satisfactorily sealed. Thereby, it is easy to effectively improve the waterproofness and rust prevention property of the overlapping portion while maintaining the assembly property of the overlapping portion. In addition, the aesthetic design of the overlapping portion can be improved.

  Moreover, in this high-viscosity material coated material, at least a part of the side surface between the upper surface and the main surface of the first plate member is substantially orthogonal to the upper surface or the main surface. That is, in this high-viscosity material coated material, the ratio of the length extending from the end surface of the second plate material to the first plate material side with respect to the volume of the portion covering the end surface of the second plate material on the first plate material can be reduced. it can. Therefore, the sealing performance per volume of the high-viscosity material application can be improved satisfactorily, and the consumption of the high-viscosity material necessary for providing the high-viscosity material application can be reduced. Moreover, it can suppress that the assembly | attachment property of an overlap part falls also about the surface direction of a 1st board | plate material and a 2nd board | plate material.

  According to the present invention, with a simple configuration in which the high-viscosity material is applied to the overlapping portion while the rear end portion of the nozzle is in contact with the high-viscosity material, waterproofness and Rustability and aesthetic design can be effectively improved.

It is a principal part schematic perspective view which shows the state which has arrange | positioned the nozzle of the coating device of the high-viscosity material which concerns on embodiment of this invention in the overlap part. It is a principal part schematic perspective view which shows the state which is making the nozzle of FIG. 1 advance along an overlapping part. It is explanatory drawing which shows the relationship between the nozzle of FIG. 2, and a sealer agent. It is a schematic sectional drawing of the sealer which concerns on embodiment of this invention. It is explanatory drawing explaining the spray coating method which apply | coats a sealer agent to an overlapping part with a general spray coating apparatus. It is a principal part schematic perspective view which shows the state which has arrange | positioned the nozzle of the coating device of the high-viscosity material which concerns on other embodiment of this invention in the overlap part.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a high viscosity material coating method according to the present invention will be described in detail with reference to the accompanying drawings by giving preferred embodiments in relation to the coating apparatus and the high viscosity material coated material.

  The method for applying the high viscosity material according to the present invention includes, for example, a sealer with respect to the end portion side of the overlapping portion in which the end portion of the second plate member is overlapped with the first plate member among the constituent members of the vehicle body such as an automobile. It can be suitably applied when a high viscosity material such as an agent is applied. For this reason, in the present embodiment, the first plate member and the second plate member are, for example, sheet metal panel parts of a vehicle body, and a high-viscosity material is applied by applying a high-viscosity material made of a sealer to the overlapping portion. An example in which a sealer is provided as an object will be described.

  However, the first plate member and the second plate member are not limited to sheet metal panel parts, and the materials thereof are not limited. The high-viscosity material is not limited to the sealer, and any material that can be applied to the overlapping portion to form a high-viscosity material coating material may be used.

  As shown in FIGS. 1 to 3, the high-viscosity material coating apparatus according to the present embodiment (hereinafter also simply referred to as a coating apparatus) includes a nozzle 10. As other components excluding the nozzle 10 of this coating apparatus, for example, known components as described in JP-A-2001-340796 can be employed. Accordingly, the illustration and detailed description of the other components excluding the nozzle 10 are omitted.

  The nozzle 10 is provided with a discharge port 12, and a sealer agent 14 (see FIGS. 2 and 3) can be discharged from the discharge port 12. That is, the coating apparatus advances the nozzle 10 along the end portion of the overlapping portion 20 in which the end portion of the second plate material 18 is overlapped with the first plate material 16 and discharges the sealer agent 14 from the discharge port 12. The sealer 14 is applied to the overlapping portion 20.

  In this coating apparatus, for example, the sealer agent 14 can be discharged from the discharge port 12 by supplying the sealer agent 14 to the nozzle 10 from a tank that stores the sealer agent 14 via a pump, a pressure regulating valve, or the like. ing. Moreover, the nozzle 10 is attached to the robot via the coating head, for example. By operating this robot according to teaching data stored in the robot controller, the nozzle 10 can be advanced along the end of the second plate member 18 of the overlapping portion 20. Teaching data can be obtained by, for example, the method described in Japanese Patent No. 5282014. That is, by performing sensing using a camera or the like in advance or together with application, it is possible to perform positioning when the nozzle 10 is advanced.

  In the present embodiment, the discharge port 12 of the nozzle 10 has a rectangular shape, and the long side of both the first plate member 16 and the second plate member 18 is centered on the end surface 18a of the second plate member 18 of the overlapping portion 20. It is set to a length that can straddle. That is, the front end portion 10a of the nozzle 10 on the front side of the discharge port 12 and the rear end portion 10b of the nozzle 10 on the rear side with respect to the traveling direction of the nozzle 10 (the arrow direction shown in FIGS. 1 to 3). The short side of the discharge port 12 is between.

  The lengths of the long side and the short side of the discharge port 12 may be set according to the components of the sealer agent 14, the material of the first plate material 16 and the second plate material 18, the dimensions of the overlapping portion 20, and the like. . 1 to 3, the first plate member 16 and the second plate member 18 are stacked so as to contact each other. However, the first plate member 16 and the second plate member 18 may be stacked so as to be separated from each other to form an overlapping portion. Even in such an overlapping portion, the same effect can be obtained by applying a high-viscosity material in the same manner as the overlapping portion 20 described above.

  A method of applying a high-viscosity material that provides the sealer 22 shown in FIG. 4 by applying the sealer 14 to the overlapping portion 20 using the coating apparatus basically configured as described above will be described. In addition, in order to compare with the coating method of the high viscosity material which concerns on this embodiment, in FIG. 5, the sealer agent 26 spray-applied to the superposition | stacking part 20 using the spray nozzle 24 of the general spray coating apparatus is illustrated. To do.

  In the coating method of the high viscosity material according to the present embodiment, first, as shown in FIG. 1, the nozzle 10 is arranged at a position that is the starting point for applying the sealer 14 in the overlapping portion 20. At this time, as compared with the rear end portion 10b of the nozzle 10, the front end portion 10a is brought closer to the first plate member 16 and the second plate member 18 so that the discharge port 12 is inclined with respect to the overlapping portion 20, and the front end portion The part 10a and the main surface 18b of the 2nd board | plate material 18 are made to contact.

  Then, as shown in FIGS. 2 and 3, the nozzle 10 is advanced in the traveling direction, and the sealer agent 14 is discharged from the discharge port 12. At this time, the sealer agent 14 is pressed toward the first plate member 16 and the second plate member 18 by bringing the rear end portion 10 b of the nozzle 10 into contact with the sealer agent 14 discharged from the discharge port 12.

  That is, the nozzle 10 is advanced while the sealer agent 14 is filled and pressed between the rear end portion 10b of the nozzle 10 and each of the first plate member 16 and the second plate member 18. Accordingly, the pressing force applied to each of the first plate member 16 and the second plate member 18 via the sealer agent 14 is larger on the second plate member 18 side closer to the rear end portion 10 b of the nozzle 10 than the first plate member 16. Become. In other words, the application pressure of the sealer 14 applied to the second plate 18 is greater than that of the first plate 16.

  Therefore, between the rear end portion 10b of the nozzle 10 and the first plate member 16 and the second plate member 18, the sealer is directed from the second plate member 18 having a high application pressure toward the first plate member 16 having a low application pressure. The flow of the agent 14 occurs. Thus, the volume (thickness) of the sealer agent 14 on the second plate member 18 can be reduced, and this reduction can be made an increase in the volume of the sealer agent 14 on the first plate member 16. As a result, the sealant 14 is applied on the first plate 16 and the second plate 18 so that the top surfaces of the sealer 14 applied to each of the first plate 16 and the second plate 18 are substantially flush with each other. The sealer 14 can be applied by advancing the nozzle 10 while leveling the upper end.

  As described above, when the application is performed in this manner, the discharge port 12 is inclined with respect to the overlapping portion 20, so that the rear end portion 10b is effectively brought into contact with the sealer agent 14, The nozzle 10 can be easily advanced. As an inclination angle θ (see FIG. 3) of the discharge port 12 with respect to the overlapping portion 20, for example, 0 ° <θ ≦ 30 ° is preferable.

  Further, as described above, since the sealer agent 14 is pressed by the rear end portion 10b of the nozzle 10, it is effective for the overlapping portion 20 even if the discharge pressure of the sealer agent 14 discharged from the nozzle 10 is not increased more than necessary. The sealer 14 can be applied to the surface. Therefore, it is possible to suppress the collision energy between the sealer agent 14 and the first plate member 16 and the second plate member 18 from increasing, and it is possible to suppress the occurrence of coating disturbance of the sealer agent 14.

  After the application is performed as described above until the nozzle 10 reaches the position that is the end point of the application of the sealer 14 in the overlapping portion 20, the discharge of the sealer 14 from the discharge port 12 is stopped. Then, the application of the sealer 14 is finished. Thereby, the sealer 14 can be applied to the application portion of the overlapping portion 20.

  As described above, when the nozzle 10 is advanced from the start point to the end point of the application portion of the overlapping portion 20, a portion of the front end portion 10 a of the nozzle 10 that advances on the second plate material 18 is defined as the second plate material 18. It is in contact with the main surface 18b. Thereby, it becomes easy to advance the nozzle 10 while appropriately maintaining the distance between the discharge port 12 of the nozzle 10 and the first plate member 16 and the second plate member 18. As a result, the application pressure applied to each of the first plate member 16 and the second plate member 18 can be easily and accurately set over the entire portion to be coated. Moreover, it can suppress effectively that the disorder | damage | failure of application | coating of the sealer agent 14 arises.

  On the other hand, the spray nozzle 24 shown in FIG. 5 generally tends to increase the discharge pressure by reducing the diameter of the discharge port 24a. Therefore, in order to efficiently apply the sealer agent 26 over the entire range spanning the first plate member 16 and the second plate member 18, the discharge port 24a and the first plate member 16 and the second plate member 18 are separated by a predetermined distance. Need to be separated. That is, when performing spray application, the spray nozzle 24 does not come into contact with the sealer agent 26 discharged onto the first plate material 16 and the second plate material 18. For this reason, the sealer agent 26 does not flow from the second plate member 18 to the first plate member 16 due to the contact with the spray nozzle 24, and the upper end of the sealer agent 26 is not leveled.

  As a result, the volume of the part on the second plate 18 of the sealer 26 spray-applied to the overlapping portion 20 tends to be excessive. If the application amount of the sealer agent 26 is reduced to avoid this, the volume of the portion that seals between the first plate member 16 and the second plate member 18 tends to be insufficient. Further, since the discharge pressure from the spray nozzle 24 is large, the collision energy between the first plate member 16 and the second plate member 18 (especially the edge portion of the second plate member 18) and the sealer agent 26 is likely to increase, resulting in coating disturbance. easy.

  As shown in FIG. 4, the sealer 22 applied by the high-viscosity material application method according to the present embodiment is solidified, whereby the sealer 22 can be provided as a high-viscosity material application on the overlapping portion 20. That is, in the sealer 22, as described above, the volume of the second plate material upper portion 22 a is reduced by the amount of the sealer 14 flowing from the second plate material 18 to the first plate material 16. Since the volume of the second plate member upper portion 22a can be reduced in this way, the maximum thickness t of the overlapping portion 20 including the sealer 22 can be prevented from increasing more than necessary. That is, when configuring the vehicle body or the like, it is possible to make it difficult for the sealer 22 and other members to interfere with each other, and it is possible to effectively suppress a reduction in the assembling property of the overlapping portion 20 with respect to the other members.

  In the sealer 22, the volume of the first plate member upper portion 22 b that covers the end surface 18 a of the second plate member 18 on the first plate member 16 is increased by the amount that the volume of the second plate member upper portion 22 a is reduced. That is, it is possible to increase the volume of a portion of the sealer 22 that seals between the first plate member 16 and the second plate member 18. Therefore, even if the maximum thickness t of the overlapping portion 20 is reduced as described above, it is possible to avoid a decrease in the sealing performance between the first plate member 16 and the second plate member 18. That is, the waterproofness and rustproofness of the overlapping portion 20 can be effectively improved.

  Further, the sealer 22 has a flat surface in which the upper surface 28 straddles the first plate member 16 and the second plate member 18, and application disturbance is suppressed in the application process of the sealer agent 14. Thereby, the aesthetic design of the overlapping portion 20 can be effectively improved.

  Further, in the sealer 22, at least a part of the side surface 30 between the upper surface 28 and the main surface 16a of the first plate member 16 is substantially orthogonal to the upper surface 28 or the main surface 16a. That is, in this sealer 22, the ratio of the maximum length L of the sealer 22 extending from the end surface 18a of the second plate material 18 to the first plate material 16 with respect to the volume of the first plate material upper portion 22b can be reduced. . Therefore, the sealing performance per volume of the sealer 22 can be improved satisfactorily, and the waterproofness and rustproofness of the overlapping portion 20 can be effectively improved while reducing the consumption of the sealer 14. Moreover, also about the surface direction of the 1st board | plate material 16 and the 2nd board | plate material 18, interference with the sealer 22 and another member can be suppressed, and it can suppress that the assembly | attachment property of the superimposition part 20 falls.

  As described above, in the high viscosity material coating method using the coating apparatus according to the present embodiment, the superposition unit 20 is assembled with a simple configuration in which the coating is performed while the rear end portion 10b of the nozzle 10 is in contact with the sealer 14. Thus, it is possible to obtain a sealer 22 that can effectively improve waterproofness, rust prevention, and aesthetic design while maintaining the properties.

  In addition, this invention is not specifically limited to above-described embodiment, Of course, a various deformation | transformation is possible in the range which does not deviate from the summary.

  In the above-described embodiment, the positioning when the nozzle 10 is advanced is performed based on teaching data obtained by sensing using a camera or the like, but is not particularly limited thereto. For example, the positioning may be performed by a positioning pin (not shown) provided at the front end portion 10a of the nozzle 10.

  That is, in the front end portion 10 a, the positioning pin is located at a position passing through the approximate center between one end of the discharge port 12 disposed on the first plate member 16 and the other end of the discharge port 12 disposed on the second plate member 18. Project. Then, the nozzle 10 is advanced while sliding the side surface of the positioning pin on the end surface 18 a of the second plate member 18. Thus, the nozzle 10 can be advanced while accurately applying the sealer 14 to both the first plate material 16 side and the second plate material 18 side around the end surface 18a of the second plate material 18. As a result, it is possible to more easily provide the sealer 22 that is continuous across the first plate member 16 and the second plate member 18 and exhibits a good sealing property over the entire overlapping portion 20.

  Further, in the above embodiment, the discharge port 12 is inclined with respect to the overlapping portion 20 and the front end portion 10 a and the main surface 18 b of the second plate member 18 are brought into contact with each other. However, it is not particularly limited to these. That is, if the nozzle 10 can be satisfactorily advanced while bringing the rear end portion 10b into contact with the sealer agent 14, the discharge port 12 is inclined and the front end portion 10a and the main surface 18b are brought into contact with each other. do not have to.

  In the above embodiment, the discharge port 12 of the nozzle 10 has a rectangular shape. However, the discharge port 12 is particularly limited to a rectangular shape as long as the sealant 14 can be applied to the overlapping portion 20 so as to straddle the first plate material 16 and the second plate material 18. It is not a thing.

  For example, as illustrated in FIG. 6, the nozzle 10 may include a discharge port 32 instead of the discharge port 12. FIG. 6 is a schematic perspective view of a main part showing a state in which the nozzle 10 having the discharge port 32 is arranged in the overlapping portion 20. 6 that have the same or similar functions and effects as those shown in FIGS. 1 to 4 are given the same reference numerals, and detailed descriptions thereof are omitted.

  In the discharge port 32, the long side on the rear end 10 b side is inclined, so that when the nozzle 10 is advanced, the width on the side facing the second plate 18 compared to the side facing the first plate 16. The (short side length) is narrow. In such a discharge port 32, even when the inclination angle θ with respect to the overlapping portion 20 is larger than the above range (for example, θ> 30 °), the sealer applied to the second plate material 18 rather than the first plate material 16. The application pressure of the agent 14 can be easily increased. This facilitates the flow of the sealer 14 from the second plate 18 to the first plate 16, and effectively reduces the volume (thickness) of the sealer 14 on the second plate 18. it can. That is, the sealer agent 14 can be easily applied to the overlapping portion 20 so that the heights of the upper ends of the sealer agent 14 on the first plate member 16 and the second plate member 18 become substantially uniform.

  Further, in the discharge port 32, as described above, the long side on the rear end portion 10b side is inclined, and the width continuously decreases from the first plate member 16 side to the second plate member 18 side. For this reason, for example, in the case where the sealant 14 is applied by using a discharge port whose width is switched between binary values at the boundary between the first plate member 16 side and the second plate member 18 side. In comparison, the occurrence of a step on the upper surface 28 of the sealer 14 can be effectively suppressed. Accordingly, it is possible to easily obtain the sealer 22 having a good flat surface in which the upper surface 28 continuously extends over the first plate member 16 and the second plate member 18.

  In the discharge port 32, the long side on the rear end portion 10b side is inclined, but the long side on the front end portion 10a side or the long sides on both sides of the front end portion 10a and the rear end portion 10b is inclined. Thus, a width that continuously narrows as described above may be formed.

DESCRIPTION OF SYMBOLS 10 ... Nozzle 12, 24a, 32 ... Discharge port 14, 26 ... Sealer agent 16 ... 1st board | plate material 16a, 18b ... Main surface 18 ... 2nd board | plate material 18a ... End surface 20 ... Overlapping part 22 ... Sealer 22a ... On 2nd board | plate material Part 22b: First plate member upper part 24 ... Spray nozzle 28 ... Upper surface 30 ... Side surface

Claims (11)

The nozzle is advanced along the end of the overlapping portion where the end of the second plate is overlapped with the first plate, and the high viscosity material is discharged from the discharge port of the nozzle so that the high viscosity is applied to the overlapping portion. A method of applying a high-viscosity material to apply a material,
Of the nozzle front direction and the rear end of the nozzle on the rear side, the rear end portion was discharged from the discharge port with respect to the nozzle traveling direction. By contacting the high-viscosity material and pressing the high-viscosity material toward the first plate member and the second plate member, the high-viscosity material applied to the second plate member rather than the first plate member. A method for applying a high-viscosity material, characterized by increasing an application pressure. In the coating method of the high-viscosity material according to claim 1,
A method of applying a high-viscosity material, wherein the nozzle is advanced by inclining the discharge port by bringing the front end portion closer to the first plate member and the second plate member than the rear end portion. . In the coating method of the high-viscosity material according to claim 2,
The method for applying a high-viscosity material, wherein the nozzle is advanced by bringing the front end portion into contact with a main surface of the second plate member. In the coating method of the high-viscosity material according to any one of claims 1 to 3,
Along the traveling direction of the nozzle, passing through the approximate center between one end of the discharge port that will travel on the first plate and the other end of the discharge port that will travel on the second plate. A positioning pin that protrudes from the front end portion on a central line that extends, and the nozzle is advanced while sliding the side surface of the positioning pin with respect to the end surface of the second plate member of the overlapping portion. A method for applying a high viscosity material. In the coating method of the high-viscosity material according to any one of claims 1 to 4,
The method for applying a high-viscosity material, wherein the discharge port has a rectangular shape with a short side between the front end portion and the rear end portion of the nozzle. A nozzle that discharges a high-viscosity material from the discharge port is provided, and the nozzle is advanced along the end portion of the overlapping portion in which the end portion of the second plate material is overlapped on the first plate member, and the high-viscosity material is discharged from the discharge port. A high-viscosity material application device that applies the high-viscosity material to the overlapping portion,
Of the nozzle front direction and the rear end of the nozzle on the rear side, the rear end portion was discharged from the discharge port with respect to the nozzle traveling direction. By contacting the high-viscosity material and pressing the high-viscosity material toward the first plate member and the second plate member, the high-viscosity material applied to the second plate member rather than the first plate member. An apparatus for applying a high-viscosity material, characterized by increasing an application pressure. In the applicator for the high-viscosity material according to claim 6,
A high-viscosity material coating apparatus, wherein the nozzle is advanced by inclining the discharge port by bringing the front end portion closer to the first plate member and the second plate member than the rear end portion. . In the application apparatus of the high-viscosity material according to claim 7,
A high-viscosity material coating apparatus, wherein the nozzle is advanced by bringing the front end portion into contact with a main surface of the second plate member. In the applicator for the high-viscosity material according to any one of claims 6 to 8,
The front end passes through the approximate center between one end of the discharge port that will travel on the first plate and the other end of the discharge port that will travel on the second plate. The positioning pin protrudes on the center line extending along the traveling direction of
The high-viscosity material coating apparatus, wherein the nozzle advances while sliding a side surface of the positioning pin with respect to an end surface of the second plate member of the overlapping portion. In the applicator of the high-viscosity material according to any one of claims 6 to 9,
The discharge port has a rectangular shape having a short side between the front end portion and the rear end portion of the nozzle. A high-viscosity material application product provided by applying a high-viscosity material to the end portion side of the overlapping portion obtained by overlapping the end portion of the second plate material on the first plate material,
The upper surface is a plane straddling the first plate material and the second plate material,
A high-viscosity material coated product, wherein at least a part of a side surface between the upper surface and the main surface of the first plate member is substantially orthogonal to the upper surface or the main surface.

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