JP7039813B2 - Painting booth and painting booth unit - Google Patents

Description

The present disclosure relates to a painting booth and a painting booth unit.

A technique is known in which paint mist is separated from the air flow and collected by the centrifugal force generated in the spiral chamber.

Japanese Unexamined Patent Publication No. 2012-020252

However, with the above-mentioned conventional technique, it is difficult to improve the maintainability of the member forming the spiral chamber. The members and the like forming the spiral chamber require regular maintenance in order to clean and remove stains due to adhesion of paint mist and the like. The spiral chamber has a problem that the workability of maintenance work is not particularly good because the gap between the uneven portion and the curved surface (the gap forming the airflow suction portion) is relatively narrow.

Therefore, on one aspect, the present invention aims to improve the maintainability of the member forming the spiral chamber.

On one side, a swirl chamber forming member forming a swirl chamber, an exhaust flow path communicating with the space on the paint spray side via the swirl chamber, and a substance in the space via the swirl chamber are exhausted. The spiral chamber forming member includes an exhaust fan that generates a negative pressure so as to be sucked into the flow path, and a first water tank member that forms a first water tank that immerses the lower portion of the spiral chamber forming member in water. The painting booth includes a main body member forming the curved surface of the spiral chamber and a first plate-shaped member detachably engaged with the main body member and facing the curved surface through a gap. Provided.

On one side, according to the present invention, it is possible to improve the maintainability of the member forming the spiral chamber.

It is a figure which shows the schematic cross section of the painting booth by one Example. It is a perspective view from the front of the unit. It is a perspective view from the rear of the unit. It is an exploded view of a main body member, a plate-shaped member, and a partition member seen from the front. It is a perspective view of the main body member in a single item state seen from the front. It is a perspective view of the partition member in a single item state seen from the rear. It is a perspective view of the plate-shaped member seen from the rear. It is explanatory drawing of the engaging method of a partition member and a main body member. It is explanatory drawing of the engaging method of a plate-shaped member and a main body member. It is explanatory drawing of the connection member. It is explanatory drawing (the 1) of maintenance work of a painting booth by a comparative example. It is explanatory drawing (2) of maintenance work of a painting booth by a comparative example. It is explanatory drawing (3) of maintenance work of a painting booth by a comparative example. It is explanatory drawing (the 4) of maintenance work of a painting booth by a comparative example. It is explanatory drawing (the 1) of the maintenance work of the painting booth by this Example. It is explanatory drawing (the 2) of the maintenance work of the painting booth by this Example. It is explanatory drawing (the 3) of the maintenance work of the painting booth by this Example.

Hereinafter, each embodiment will be described in detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing a schematic cross section of a painting booth 1 according to an embodiment. In FIG. 1, the flow of air, water, etc. is schematically shown by arrows. In FIG. 1, three orthogonal directions, the X direction, the Y direction, and the Z direction, are defined. The Z direction corresponds to the vertical direction (gravity direction). In the following, for the sake of explanation, the positive side in the X direction is referred to as “back side or rear”, and the negative side in the X direction is referred to as “front side or front”.

As used herein, the term "water" is a concept that includes water containing a predetermined treatment agent. The predetermined treatment agent is optional, but for example, a pH adjusting agent (for example, a caustic soda aqueous solution) or a paint collected in the painting booth 1 is prevented from adhering to each part of the painting booth 1 (non-adhesiveness). It is a treatment agent that makes it easy to take out paint sludge all at once.

The painting booth 1 is called a Venturi booth, and adopts a vortex flow method using centrifugal force to improve the collection efficiency of paint mist.

The painting booth 1 includes a painting chamber 100 (an example of a space on the painting spray side) for performing painting work, and an exhaust flow path 101.

In the painting chamber 100, painting of an object to be painted (not shown) is executed using a spray gun (painting spray) 102. Specifically, as shown schematically by reference numeral S in FIG. 1, the paint is sprayed from the spray gun 102. When the paint is sprayed from the spray gun 102, paint mist that does not adhere to the object to be painted (hereinafter, simply referred to as “paint mist”) is generated.

A front panel 3 and a front plate 30 are provided between the coating chamber 100 and the exhaust flow path 101 in the X direction. The front panel 3 extends over the entire width of the painting booth 1 in the Y direction. The front panel 3 cooperates with a side panel (not shown) and a back panel 4 to define an exhaust flow path 101. The exhaust flow path 101 and the painting chamber 100 communicate with each other via the spiral chamber 40.

As shown in FIG. 1, the front panel 3 has a portion 3a that is inclined in a manner toward the back side toward the lower side from the ceiling portion 1a of the coating booth 1 in a side view in the Y direction, and a portion 3a downward from the lower end of the portion 3a. Includes a site 3b that extends straight to the ceiling.

The front plate 30 extends downward from the lower end of the portion 3a and has an uneven lower end surface (see FIG. 2). The front plate 30 may be provided in such a manner that it abuts on the lower end of the portion 3a from the front side. Details of the front plate 30 will be described later. The front plate 30 faces the curved surface 41 of the spiral chamber 40 with a gap, so that the airflow suction portion 6 is formed between the front plate 30 and the curved surface 41.

An exhaust fan 8 is provided in the exhaust flow path 101. The exhaust fan 8 has a negative pressure so that the substance in the coating chamber 100, that is, the air containing the paint mist, is sucked into the exhaust flow path 101 through the spiral chamber 40 (see arrows R1 and R2 in FIG. 1). Occurs. As a result, air containing paint mist is sucked from the airflow suction portion 6 into the spiral chamber 40 (see arrows R3 and R4 in FIG. 1). The exhaust flow path 101 may be formed so that the flow velocity becomes slower toward the upper side (exhaust fan 8 side).

The lower portion of the curved surface 41 of the spiral chamber 40 is immersed in the water W of the booth water tank formed by the booth water tank member 2 (an example of the first water tank member), and air containing paint mist is sucked from the air flow suction portion 6. At that time, the centrifugal force in the spiral chamber 40 causes the water and the paint mist to come into gas-liquid contact. That is, when the air containing the paint mist is introduced into the swirl chamber 40, the water and the paint mist come into gas-liquid contact due to the centrifugal force in the swirl chamber 40. At this time, the paint mist is atomized and collected in the back water tank 10 (see R5). That is, the paint mist is separated from the air flow by the centrifugal force in the spiral chamber 40 and is collected by colliding with the water film. The paint mist and water collected in the back water tank 10 are returned to the front part of the booth water tank member 2 by the back water tank 10 and the submersible duct 11 (see arrow R20). The rear water tank 10 may be configured to communicate with the booth water tank only through the underwater duct 11. A partition plate 12 is provided on the back side of the underwater duct 11 from the front end portion (exit). The partition plate 12 has a function of restricting the flow of paint sludge (not shown) so that it is not sucked into the air flow suction portion 6 (hereinafter, referred to as “paint sludge damming function”). In order to realize this paint sludge damming function, the partition plate 12 has an upper end above the normal water level of the booth water tank.

The air from the swirl chamber 40 contains moisture and is raised by the exhaust fan 8 (see R6). At that time, by hitting the lower side of the eliminator 9 provided in the exhaust flow path 101, the water becomes water droplets (schematically indicated by P1 in FIG. 1) and is collected in the back water tank 10. The eliminator 9 is in the form of a drainer. In this way, the air from the spiral chamber 40 rises while moving back and forth while the moisture is removed by the multi-stage eliminator 9 (see R7 and R8), and is finally exhausted to the outside of the painting booth 1. (See R9).

Next, the unit 200 (an example of the unit for the painting booth) used in the painting booth 1 will be described with reference to FIGS. 2 to 10. In the following description, the user refers to the user of the painting booth 1.

2 is a perspective view from the front of the unit 200, FIG. 3 is a perspective view from the rear of the unit 200, and FIG. 4 is a main body member 400, a plate-shaped member 500, and a partition member as viewed from the front. It is an exploded view of 800, FIG. 5 is a perspective view of a main body member 400 as seen from the front, FIG. 6 is a perspective view of the partition member 800 as a single item seen from the rear, and FIG. 7 is a perspective view of the partition member 800 as a single item. , Is a perspective view of the plate-shaped member 500 viewed from the rear. 8 is an explanatory diagram of an engaging method between the partition member 800 and the main body member 400, FIG. 9 is an explanatory diagram of an engaging method between the plate-shaped member 500 and the main body member 400, and FIG. 10 is an explanatory diagram. , It is explanatory drawing of the connection member 600.

As shown in FIGS. 2 and 3, the unit 200 includes a main body member 400, a plate-shaped member 500 (an example of a first plate-shaped member), a connecting member 600, and a water tank member 700 (an example of a second water tank member). , A partition member 800 (an example of a second plate-shaped member), and an underwater duct forming member 900. Each member forming the unit 200 is formed of, for example, a sheet metal member. In this embodiment, the main body member 400 and the plate-shaped member 500 form an example of the spiral chamber forming member.

The unit 200 is provided in the booth water tank so as to be supported by the bottom of the booth water tank member 2.

The main body member 400 is supported by the bottom of the booth water tank member 2. The main body member 400 forms a curved surface 41 of the spiral chamber 40 (see FIG. 1) (see FIGS. 1 and 5). The curved surface 41 has a function of guiding a substance (air containing paint mist) sucked from the air flow suction portion 6 so as to swirl in a spiral shape. The curved surface 41 has an equal cross section when viewed in the Y direction. The curved surface 41 has a curved center on the upper side (the side on which the spray gun 102 is arranged). That is, the curved surface 41 is curved so as to be recessed behind and downward. In the example shown in FIG. 5, the curved surface 41 includes an upper first curved surface 41a and a lower second curved surface 41b. The first curved surface 41a has a smaller radius of curvature than the second curved surface 41b, but the radius of curvature of the curved surface 41 is optional. The curved surface is a concept that includes not only a smooth arc surface but also a compound curved surface formed in multiple stages.

In this embodiment, as an example, the main body member 400 has a shape symmetrical with respect to the center in the Y direction. The main body member 400 has side wall portions 401 on both sides in the Y direction. The side wall portion 401 is coupled to both ends of the curved surface 41 in the Y direction. The lower end of the side wall portion 401 is supported by the bottom portion of the booth water tank member 2 via a bolt (height adjusting means) whose height can be adjusted by the degree of tightening.

At the front end of the side wall portion 401, a flange surface 410 having a normal direction in the X direction is formed. A hole 412 and a notch 413 are formed on the upper portion of the flange surface 410. The notch 413 is in the form of an opening on the upper side. The holes 412 and the notches 413 function when the partition member 800 is detachably engaged with the main body member 400, as will be described later.

In the vicinity of the intermediate position of the side wall portion 401 in the X direction, an outer flange surface 420 having the X direction as the normal direction and an inner flange surface 421 having the X direction as the normal direction are formed. .. A handle 430 is provided on the flange surface 420. The handle 430 is gripped by the user when, for example, the user pulls out the main body member 400 toward the front during maintenance. A hole 422 and a notch 423 are formed in the flange surface 421. The notch 423 is in the form of an opening on the upper side. The holes 422 and the notch 423 function when the plate-shaped member 500 is detachably engaged with the main body member 400, as will be described later.

The plate-shaped member 500 is a member that forms the front plate 30 (see FIG. 1). As shown in FIG. 7, the plate-shaped member 500 has a plate-shaped shape and has an uneven lower end surface 510. The uneven shape may be a mode in which concave portions and convex portions are periodically repeated along the Y direction. As shown in FIGS. 1 and 2, the lower end surface 510 faces the curved surface 41 of the main body member 400 via a gap. As described above, this gap forms an airflow suction portion 6 (see FIG. 1) between the plate-shaped member 500 and the main body member 400. In addition, in FIG. 7, the lower side of the plate-shaped member 500 is inclined rearward.

The plate-shaped member 500 is removably engaged with the main body member 400. In this embodiment, as an example, the plate-shaped member 500 has claw-shaped or hook-shaped portions 501 and 502 (hereinafter referred to as “engagement protrusions 501 and 502”) as shown in FIG. The engaging protrusions 501 and 502 are provided on both sides in the Y direction on the back surface side of the plate-shaped member 500. The engaging protrusions 501 and 502 are provided side by side. The engaging protrusions 501 and 502 are downward and project diagonally downward. The engaging protrusions 501 and 502 may be extended in the X direction and then bent at a right angle to extend downward.

The plate-shaped member 500 is supported by the main body member 400 by engaging the engaging protrusions 501 and the engaging protrusions 502 with the notches 423 and the holes 422, respectively. That is, the engaging projection 501 engages the notch 423 and the engaging projection 502 engages the hole 422. For example, during maintenance, when the user moves the plate-shaped member 500 forward and upward with respect to the main body member 400, the engaging protrusion 502 can escape from the hole 422, and the engaging protrusion 501 moves upward from the notch 423. Can come off. Therefore, the user can remove the plate-shaped member 500 from the main body member 400 by moving the plate-shaped member 500 to the front side with respect to the main body member 400 while lifting the plate-shaped member 500 upward. Further, when assembling in reverse, the user aligns the plate-shaped member 500 with respect to the main body member 400 so that the engaging protrusion 502 enters the hole 422 and the engaging protrusion 501 is above the notch 423. Then, the plate-shaped member 500 is moved downward. As a result, the engaging projection 501 engages with the notch 423, the engaging projection 502 engages with the hole 422, and the plate-shaped member 500 is assembled to the main body member 400.

As shown in FIG. 10, the connecting member 600 is in the form of a chain or a string. For example, the connecting member 600 may be formed of a chain, a wire, a rope, or the like. The connecting member 600 connects the main body member 400 and the water tank member 700. The connecting members 600 are provided on both sides in the Y direction. The connecting member 600 may be detachably connected to the main body member 400. In this case, for example, the end of the connecting member 600 on the main body member 400 side may be in the form of a hook or the like. Similarly, the connecting member 600 may be detachably connected to the aquarium member 700. In this case, for example, the end of the connecting member 600 on the water tank member 700 side may be in the form of a hook or the like.

The connecting member 600 has a function of easily pulling out the water tank member 700 to the front side by the user by grasping the connecting member 600 after the user pulls out the main body member 400 to the front side at the time of maintenance. From the viewpoint of improving workability during such maintenance, the main body member 400 is preferably connected to the connection member 600 at a connection position higher than the connection position in the water tank member 700. Specifically, the connecting member 600 is preferably connected at a relatively high position with respect to the main body member 400, as shown in FIG. For example, the connecting member 600 is connected to the main body member 400 at a position higher than the normal water level of the booth water tank member 2 (see FIG. 1). In this case, the user can grab the connecting member 600 and pull it forward without putting his hand in the water or with a little hand in the water. On the other hand, as shown in FIG. 10, the connecting member 600 is connected at a height equal to or lower than the height of the center of gravity of the water tank member 700. As a result, when the user pulls the connecting member 600 and pulls out the water tank member 700, the movement of the water tank member 700 is stabilized and the workability is improved.

The connecting member 600 preferably extends with a slack between the main body member 400 and the water tank member 700 in the operating position. In FIG. 10, the main body member 400 and the water tank member 700 are each in an operating position, and the connecting member 600 is shown in a loose state. The linear length of the connecting member 600 is significantly longer than the length between the main body member 400 and the water tank member 700 in the operating position (the length between the connecting positions at both ends of the connecting member 600). For example, the length of the connecting member 600 may be adapted so that there is no slack when the main body member 400 is located near the front end of the booth water tank member 2 with respect to the water tank member 700 in the operating position. In this case, when the user pulls out the main body member 400 to the vicinity of the front end of the booth water tank member 2 at the time of maintenance, the weight of the water tank member 700 has substantially no effect. Therefore, the workability when the user pulls out the main body member 400 to the vicinity of the front end of the booth water tank member 2 at the time of maintenance is improved.

The water tank member 700 is a member that forms the back water tank 10 (see FIG. 1). The water tank member 700 is provided on the back surface side (an example of the first side) of the main body member 400. As described above, the water tank member 700 can be connected to the back surface side of the main body member 400 via the connecting member 600. The water tank member 700 is supported by the bottom of the booth water tank member 2. The water tank member 700 is provided in a manner in which the upper side opens below the exhaust flow path 101 (see FIG. 1) (see FIG. 1). As described above, the back surface water tank 10 formed by the water tank member 700 has a function of colliding with the water film due to the centrifugal force in the spiral chamber 40 and collecting the paint mist and water droplets. As shown in FIGS. 2 and 3, the water tank member 700 has a through hole 702 near the center of the bottom.

The partition member 800 is a member that forms the partition plate 12 (see FIG. 1). As shown in FIG. 6, the partition member 800 has a plate-like shape, and the upper portion is bent rearward. The upper end of the partition member 800 is on the front side (far side from the water tank member 700) of the front plate 30 (plate-shaped member 500) in the X direction (an example of the first direction), and the end of the underwater duct forming member 900 in the X direction. It is located on the rear side (the side closer to the water tank member 700) than the portion (front end portion). As a result, the paint sludge generated by the paint mist discharged from the underwater duct 11 (see FIG. 1) is likely to be formed on the front side of the partition member 800, so that the paint sludge blocking function of the partition member 800 is effectively realized. Ru.

The partition member 800 is removably engaged with the main body member 400. The partition member 800 is detachably engaged with the main body member 400 on the front side of the main body member 400 (at a position farther from the water tank member 700 than the plate-shaped member 500). In this embodiment, as an example, the partition member 800 has claw-shaped or hook-shaped portions 801 and 802 (hereinafter referred to as “engagement protrusions 801 and 802”) as shown in FIG. Engagement protrusions 801 and 802 are provided on both sides in the Y direction on the back surface side of the partition member 800. The engaging protrusions 801 and 802 are provided side by side. The engaging protrusions 801 and 802 are downward and project diagonally downward. The engaging projections 801 and 802 may be extended in the X direction and then bent at a right angle to extend downward.

As shown in FIG. 8, the partition member 800 is supported by the main body member 400 by engaging the engaging protrusions 801 and the engaging protrusions 802 with the notches 413 and the holes 412, respectively. That is, the engaging projection 801 engages the notch 413 and the engaging projection 802 engages the hole 412. For example, during maintenance, when the user moves the partition member 800 forward and upward with respect to the main body member 400, the engaging protrusion 802 can escape from the hole 412, and the engaging protrusion 801 disengages upward from the notch 413. be able to. Therefore, the user can remove the partition member 800 from the main body member 400 by moving the partition member 800 to the front side with respect to the main body member 400 while lifting the partition member 800 upward. Further, when assembling in reverse, the user aligns the partition member 800 with respect to the main body member 400 so that the engaging protrusion 802 enters the hole 412 and the engaging protrusion 801 comes to the upper side of the notch 413. Then, the partition member 800 is moved downward. As a result, the engaging projection 801 engages with the notch 413, the engaging projection 802 engages with the hole 412, and the partition member 800 is assembled to the main body member 400.

The partition member 800 is supported by the main body member 400 in a state of being engaged with the main body member 400 (see FIG. 2) so as to be separated from the bottom of the booth water tank member 2 (see FIG. 1). That is, as shown in FIG. 2, the lower end of the partition member 800 is located above the lower end of the main body member 400. As a result, the partition member 800 is directly supported by the bottom of the booth water tank member 2 (see FIG. 1) (for example, the partition member according to the comparative example having a leg portion abutting on the bottom of the booth water tank member 2). The weight of the partition member 800 can be reduced and the maintainability can be improved. This is because, for example, in the case of the partition member according to the comparative example (see FIG. 11A described later) having the legs in contact with the bottom of the booth water tank member 2, cleaning of the legs is relatively complicated.

The underwater duct forming member 900 is a member that forms the underwater duct 11 (see FIG. 1). The underwater duct forming member 900 extends in the X direction. The underwater duct forming member 900 passes below the lower end of the partition member 800 and opens to the front side of the booth water tank. The underwater duct forming member 900 may be supported by the bottom of the booth water tank member 2 in such a manner that the lower surface abuts on the surface of the bottom of the booth water tank member 2. The underwater duct forming member 900 is connected to the through hole 702 of the water tank member 700. The underwater duct forming member 900 may be integrated with the water tank member 700 by welding or the like.

According to this embodiment, as described above, since the plate-shaped member 500 is detachably engaged with the main body member 400, the plate-shaped member 500 is fixed to the main body member 400 with a bolt or the like as compared with the case where the plate-shaped member 500 is detachably engaged with the main body member 400. , Maintenance is improved. This point will be described in detail later with reference to FIGS. 11A to 12C.

Further, according to the present embodiment, as described above, since the partition member 800 is detachably engaged with the main body member 400, the partition member 800 is fixed to the main body member 400 with bolts or the like as compared with the case where the partition member 800 is fixed to the main body member 400 with bolts or the like. , Maintenance is improved. The improvement of maintainability will be described in detail later with reference to FIGS. 11A to 12C. Further, the stability of the partition member 800 can be enhanced as compared with the partition member according to the comparative example (see FIG. 11A described later) having the legs in contact with the bottom of the booth water tank member 2. That is, in the booth water tank, the water (including the paint mist) returning from the underwater duct 11 to the front side of the booth water tank may cause a wavy phenomenon on the water surface and move the partition member 800. In this respect, according to the present embodiment, since the partition member 800 is supported by the main body member 400, the possibility of such a situation can be reduced. Further, since the partition member 800 is stabilized, the sense of stability when the user stands by placing his / her foot on the partition member 800 is also improved. Therefore, the workability such as maintenance work that the user can perform while standing on the partition member 800 is also improved.

Next, with reference to FIGS. 11A to 12C, the maintenance work of the painting booth 1 according to the present embodiment will be described in comparison with the maintenance work of the painting booth 1A according to the comparative example.

11A to 11D are explanatory views of the maintenance work of the painting booth 1A according to the comparative example, and FIGS. 12A to 12C are explanatory views of the maintenance work of the painting booth 1 according to the present embodiment. Since FIGS. 12A to 12C are explanatory views, each member is shown in a simplified manner, and the detailed portion may be different from that of the same member with reference to FIGS. 2 to 10. 11A to 12C are cut model views of the painting booth 1A and a part of the painting booth 1, and the side panel portion is cut so that the internal configuration can be seen.

In the painting booth 1A according to the comparative example, the main body member 400, the plate-shaped member 500, and the partition member 800 are replaced by the main body member 400A, the plate-shaped member 500A, and the partition member 800A, respectively, with respect to the painting booth 1 according to the present embodiment. The difference is that the connecting member 600 is not provided.

The main body member 400A is integrated with the plate-shaped member 500A. For example, the main body member 400A and the plate-shaped member 500A are integrated by being fastened with bolts or the like. The partition member 800A is self-supporting and has a leg portion 810A that abuts on the bottom of the booth water tank member 2. Therefore, the partition member 800A is not configured to be engageable with the main body member 400A.

In the comparative example, FIG. 11A shows an operating state (a state in which the main body member 400A, the plate-shaped member 500A, the water tank member 700, the partition member 800A, and the underwater duct forming member 900 are in the operating position). At the time of maintenance, from the operating state shown in FIG. 11A, the user first pulls out the partition member 800A to the front side and takes it out as shown in FIG. 11B. Next, as shown in FIG. 11C, the user pulls out the integrated main body member 400A and the plate-shaped member 500A to the front side at the same time and takes them out. Next, the user pulls out the integrated water tank member 700 and the underwater duct forming member 900 to the front side at the same time and takes them out. This enables maintenance such as cleaning of the main body member 400A, the plate-shaped member 500A, the water tank member 700, the partition member 800A, and the underwater duct forming member 900. In addition, maintenance such as cleaning the back side of the booth water tank member 2 becomes possible.

In this embodiment, FIG. 12A shows an operating state (a state in which the main body member 400, the plate-shaped member 500, the connecting member 600, the water tank member 700, the partition member 800, and the underwater duct forming member 900 are in the operating position). At the time of maintenance, from the operating state shown in FIG. 12A, the user first removes the partition member 800 from the main body member 400 and pulls out the partition member 800 to the front side as shown in FIG. 12B.

Here, the partition member 800 can be reduced in weight by the amount that the leg portion 810A is not provided, as compared with the partition member 800A according to the comparative example. Therefore, according to the present embodiment, the workability of pulling out the partition member 800 toward the front side is improved as compared with the comparative example. Further, according to the present embodiment, since the partition member 800 does not include the leg portion 810A, the lower surface side can be easily cleaned.

Next, from the state shown in FIG. 12B, the user removes the plate-shaped member 500 from the main body member 400 and takes out the plate-shaped member 500. The user may pull out the main body member 400 with which the plate-shaped member 500 is engaged to some extent from the state shown in FIG. 12B, and then remove the plate-shaped member 500 from the main body member 400 and take it out. Next, as shown in FIG. 12C, the user pulls out the main body member 400 in the state where the partition member 800 and the plate-shaped member 500 are removed and takes them out.

Here, the main body member 400 in the state where the partition member 800 and the plate-shaped member 500 are removed is lighter than the main body member 400A in which the plate-shaped member 500A is integrated according to the comparative example. Therefore, according to this embodiment, the workability of pulling out the main body member 400 toward the front side is improved as compared with the comparative example. Further, according to the present embodiment, since the plate-shaped member 500 can be easily removed from the main body member 400, the user can clean the main body member 400 and the plate-shaped member 500 separately. In a state where the main body member 400 and the plate-shaped member 500 are assembled, the gap between the lower end surface 510 of the plate-shaped member 500 and the curved surface 41 of the main body member 400 is narrow, and it is difficult to clean the gap. In this respect, according to this embodiment, it is easy to clean the gap.

Next, from the state shown in FIG. 12C, the user pulls the connecting member 600 toward the front (not shown) to simultaneously pull out the integrated water tank member 700 and the underwater duct forming member 900 to the front side and take them out. As a result, maintenance such as individual cleaning of the main body member 400, the plate-shaped member 500, and the partition member 800 becomes possible. In addition, maintenance such as cleaning of the water tank member 700 and the underwater duct forming member 900 becomes possible. In addition, maintenance such as cleaning the back side of the booth water tank member 2 becomes possible. The user may remove the front end of the connecting member 600 from the main body member 400, and then simultaneously pull out the water tank member 700 and the underwater duct forming member 900 integrated by grasping the front end of the connecting member 600.

Here, the length L (see FIG. 12C) from the front end of the booth water tank member 2 to the front end of the water tank member 700 is relatively long, for example, about 1 m. Therefore, in order for the user to grasp the water tank member 700 by hand, it is highly necessary to put his / her foot in the booth water tank. Further, it is conceivable that the user grasps the front end portion of the underwater duct forming member 900 by hand and pulls it out, but in this case as well, it is highly necessary to put a foot in the booth water tank.

In this regard, according to the present embodiment, since the connecting member 600 is provided, as described above, the user grasps the connecting member 600 by hand and pulls it toward the front to form the integrated water tank member 700 and the underwater duct. The member 900 can be pulled out to the front side at the same time. The user does not need to put his / her foot in the booth water tank when grasping the connecting member 600 by hand. This is because the connecting member 600 can be easily grasped by the user when the main body member 400 is pulled out to the front side. Therefore, according to this embodiment, workability when pulling out the water tank member 700 and the underwater duct forming member 900 to the front side is improved.

The unit 200 according to the above-described embodiment can be retrofitted in the existing painting booth in place of the corresponding component.

Although each embodiment has been described in detail above, the present invention is not limited to a specific embodiment, and various modifications and changes can be made within the scope of the claims. It is also possible to combine all or a plurality of the components of the above-described embodiment.

For example, in the above-described embodiment, the plate-shaped member 500 has engaging projections 501 and 502, and the main body member 400 has a notch 423 and a hole 422, but is not limited thereto. For example, instead of the notch 423, a hole may be used. Further, three or more engaging protrusions may be used, or one of the engaging protrusions 501 and 502 may be omitted. Further, the main body member 400 may have an upward engaging protrusion, and the plate-shaped member 500 may have a notch (a notch that opens on the lower side) or a hole that can be engaged with the upward engaging protrusion. ..

Similarly, in the above-described embodiment, the partition member 800 has the engaging protrusions 801 and 802, and the main body member 400 has the notch 413 and the hole 412, but the present invention is not limited thereto. For example, instead of the notch 413, a hole may be used. Further, three or more engaging protrusions may be used, or one of the engaging protrusions 801 and 802 may be omitted. Further, the main body member 400 may have an upward engaging protrusion, and the partition member 800 may have a notch (a notch that opens on the lower side) or a hole that can be engaged with the upward engaging protrusion.

Further, in the above-described embodiment, the coating booth 1 has the structure shown in FIG. 1, but is not limited to this. For example, the exhaust flow path 101 may be provided with a shower unit that injects water into the air flow rising from the spiral chamber 40. Further, a configuration may be provided in which water in the booth water tank is pumped up by a pump and water is flowed from the upper part of the front panel 3 along the front panel 3.
Further, in the above-described embodiment, the underwater duct forming member 900 extends from the water tank member 700 to the front side of the booth water tank, but is not limited to this. For example, the underwater duct forming member 900 may extend laterally (Y direction) from the water tank member 700, or may extend from the water tank member 700 to the back surface side. In this case, the partition member 800 may be omitted.
Further, in the above-described embodiment, the plate-shaped member 500 has a concavo-convex lower end surface 510, but the lower end surface 510 is not limited to the concavo-convex shape and may be linear.
Further, in the above-described embodiment, the connecting member 600 is in the form of a chain or a string, but may be in another form in which bending occurs. Further, in another modification, the connecting member 600 may be in the form of a rigid body that does not bend, or may be omitted.

1 Painting booth 1a Ceiling 2 Booth water tank member 3 Front panel 3a Part 3b Part 4 Back panel 6 Airflow suction part 8 Exhaust fan 9 Eliminator 10 Back water tank 11 Submersible duct 12 Partition plate 30 Front plate 40 Swirl chamber 41 Curved surface 41a 1st Curved surface 41b Second curved surface 100 Painting chamber 101 Exhaust flow path 102 Spray gun 200 Unit 400 Main body member 401 Side wall 410 Flange surface 412 Hole 413 Notch 420 Flange surface 421 Flange surface 422 Hole 423 Notch 430 Handle 500 Plate-shaped member 501 Engagement protrusion 502 Engagement protrusion 510 Lower end surface 600 Connection member 700 Water tank member 702 Through hole 800 Partition member 801 Engagement protrusion 802 Engagement protrusion 900 Underwater duct forming member

Claims (6)

The spiral chamber forming member that forms the spiral chamber,
An exhaust flow path that communicates with the space on the paint spray side via the spiral chamber,
An exhaust fan that generates a negative pressure so that substances in the space are sucked into the exhaust flow path through the swirl chamber.
The first water tank member forming the first water tank in which the lower portion of the swirl chamber forming member is immersed in water is included.
The spiral chamber forming member includes a main body member that forms a curved surface of the spiral chamber, and a first plate-shaped member that is detachably engaged with the main body member and faces the curved surface via a gap. Including ,
One of the main body member and the first plate-shaped member has a claw-shaped or hook-shaped portion, and the other of the main body member and the first plate-shaped member can engage with the portion. A painting booth with holes or notches . The spiral chamber forming member that forms the spiral chamber,
An exhaust flow path that communicates with the space on the paint spray side via the spiral chamber,
An exhaust fan that generates a negative pressure so that substances in the space are sucked into the exhaust flow path through the swirl chamber.
A first water tank member forming a first water tank in which the lower portion of the swirl chamber forming member is immersed in water, and a first water tank member.
A second water tank member forming a second water tank below the exhaust flow path, and
An underwater duct forming member connected to the bottom of the second water tank member and passing through the water of the first water tank member ,
It includes a second plate-shaped member that is detachably engaged with the main body member at a position farther from the second water tank member than the first plate-shaped member and has an upper end above the water level of the first water tank.
The spiral chamber forming member is the first plate-shaped member that is detachably engaged with the main body member forming the curved surface of the spiral chamber and faces the curved surface through a gap. And including painting booths. The coating booth according to claim 2 , wherein the second plate-shaped member is supported by the main body member in a state of being engaged with the main body member so as to be separated from the bottom of the first water tank member. The painting booth according to claim 2 or 3 , further comprising a connecting member connecting the main body member and the second water tank member. The connecting member, in the form of a chain or a string, extends with slack between the main body member and the second water tank member in an operating position.
The painting booth according to claim 4 , wherein the connection position of the main body member with the connection member is higher than the connection position of the second water tank member with the connection member. It ’s a unit for painting booths.
The main body member that forms the curved surface of the spiral chamber,
A first plate-shaped member that is detachably engaged with the main body member and faces the curved surface through a gap.
With connecting members
A water tank member that can be connected to the first side of the main body member in the first direction via the connecting member.
A unit comprising a second plate-like member that is detachably engaged on the opposite side of the main body member from the first side in the first direction.

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