Filter equipment, transport vehicles, and painting equipment

Abstract

This filter device 1 comprising: a housing 4 having an opening 41 into / from which a filter element 2 can be inserted / extracted, and a door 42 which can close the opening 41, and accommodating the filter element 2; and a receiving dish 3 on which the filter element 2 is placed, the filter device being characterized by comprising a restriction member which, while the receiving dish 3 on which the filter element 2 is placed is accommodated in the housing 4, is disposed between the filter element 2 and the door 42 and restricts the movement of at least one among the filter element 2 and the receiving dish 3.

Description

[Technical Field]

[0001] The present invention relates to a filter device, a transport vehicle, and a painting device. [Background technology]

[0002] Filter devices using disposable filter elements are widely used in paint factories and the like. JP 2021-133269 A (Patent Document 1) discloses a paint mist removal device that facilitates filter replacement. JP 2016-538118 A (Patent Document 2) also discloses a filtering facility that can accommodate multiple filter elements. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-133269 [Patent Document 2] Special Publication No. 2016-538118 Summary of the Invention [Problem to be solved by the invention]

[0004] The filter devices described in Patent Documents 1 and 2 are designed to use disposable filter elements, and are therefore provided with an opening that allows the filter element to be inserted and removed, as well as a door for closing the opening while the filter device is in operation. Conventionally, the filter element has sometimes pushed the door from the inside, causing it to deform, resulting in incomplete closure of the opening. Incomplete closure of the opening can lead to problems such as the leakage of exhaust gas containing paint mist and a reduction in the airflow rate of the exhaust system in which the filter element is located.

[0005] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a coating apparatus in which an opening of a filter device is maintained in a closed state by a door. [Means for solving the problem]

[0006] The filter device according to the present invention has an opening through which a filter element can be inserted and removed, a door capable of closing the opening, a housing for accommodating the filter element, and a tray on which the filter element is placed. The filter device further comprises an abutment member provided on the housing, an abutment piece provided on the tray, and a stopper member supported on a top surface of the housing; The abutment piece is movable between a retracted position where the tray can be inserted into the housing through the opening, and a restricting position where the abutment piece abuts against the abutment member to restrict movement of the tray when the tray on which the filter element is placed is housed in the housing. The stopper member is movable between a state in which it does not come into contact with the filter element along the top surface of the housing and a state in which it extends downward from the top surface of the housing and can come into contact with the filter element. It is characterized by:

[0007] With this configuration, it is unlikely that the filter element will push open the door, creating a gap, and therefore the opening can be more easily maintained closed by the door while the filter device is in operation.

[0008] Further features and advantages of the present invention will become more apparent from the following description of exemplary and non-limiting embodiments, which is given with reference to the drawings. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram of a coating device according to an embodiment. [Figure 2] FIG. 1 is a perspective view of a filter device according to an embodiment. [Figure 3] FIG. 1 is a perspective view of a filter device according to an embodiment. [Figure 4] FIG. 4 is an enlarged view of part IV in FIG. 3 (in a state where restrictions are lifted). [Figure 5]FIG. 4 is an enlarged view of part IV in FIG. 3 (in a restricted state). [Figure 6] FIG. 4 is an enlarged view of part VI in FIG. 3 (in a state where restrictions are lifted). [Figure 7] FIG. 4 is an enlarged view of part VI in FIG. 3 (in a restricted state). [Figure 8] FIG. 2 is a perspective view of a transport vehicle for a filter device according to an embodiment. [Figure 9] FIG. 2 is a perspective view of a transport vehicle for a filter device according to an embodiment. [Figure 10] 10A and 10B are diagrams illustrating a state in which a filter element is being installed in the filter device according to the embodiment. [Figure 11] 10A and 10B are diagrams illustrating a state in which a filter element is being installed in the filter device according to the embodiment. [Figure 12] FIG. 12 is an enlarged view of part XII in FIG. [Figure 13] FIG. 10 is a diagram showing a modified example of the tray. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present invention will be described in detail below with reference to the accompanying drawings, in which: a filter device, a transport vehicle, a coating device, and a method for installing a filter element according to the present invention are applied to a filter device 1 (FIG. 1) installed under the floor of a coating booth 10 in a coating device 100;

[0011] [Configuration of the painting equipment] The coating apparatus 100 according to this embodiment comprises a coating booth 10 and a filter device 1 (Fig. 1). The coating booth 10 has an upper tank 10a, which is disposed above a grating floor 12 and where coating work is carried out by a coating device 11, and a lower tank 10b, which is disposed below the grating floor 12 and connected to the filter device 1. A downward air current is formed within the coating booth 10, and air containing paint that has not adhered to the object to be coated is guided from the upper tank 10a to the lower tank 10b.

[0012] The filter device 1 is installed below the paint booth 10 with the paint booth connection port 43 connected to the lower tank 10b of the paint booth 10 and the exhaust duct connection port 44 connected to the exhaust duct D.

[0013] [Configuration of the filter device] The filter device 1 according to this embodiment includes a tray 3 on which the filter element 2 is placed, and a housing 4 that houses the filter element 2 and the tray 3. Fig. 2 shows the filter element 2 and the tray 3 placed outside the housing 4. Fig. 3 shows the filter element 2 and the tray 3 housed in the housing 4.

[0014] (filter element) The filter element 2 is a so-called cardboard filter, and has a filter inlet 21, a filter section 22, and a filter outlet 23. When exhaust gas containing paint mist is introduced through the filter inlet 21, the paint mist is captured in the filter section 22, and exhaust gas with a reduced paint mist content is discharged from the filter outlet 23. In this embodiment, the filter element 2 is rectangular in plan view.

[0015] (saucer) The tray 3 has a mounting surface 31 on which the filter element 2 is placed, and wall members 32 extending upward from the edge of the mounting surface 31. In this embodiment, the mounting surface 31 is also rectangular in plan view, corresponding to the rectangular shape of the filter element 2 in plan view. The wall members 32 are provided at positions corresponding to each side of the rectangle of the mounting surface 31, and serve to restrict movement of the filter element 2. Of these, the wall member 32a, which is located on the front side of FIG. 3 (the side of the opening 41) when the tray 3 is accommodated in the housing 4, is provided with an abutment piece 33 and a lever 34, which will be described later.

[0016] (Housing) The housing 4 has an opening 41, a door 42, a paint booth connection port 43, an exhaust duct connection port 44, and a floor roller 45, and has a shape in which two connection members that respectively function as the paint booth connection port 43 and the exhaust duct connection port 44 are attached to the roughly rectangular parallelepiped main body. The opening 41 is provided on one side of the rectangular parallelepiped with a shape and dimensions that allow the filter element 2 placed on the tray 3 to be inserted and removed. The door 42 is provided as a double-door, and the opening 41 can be closed by closing the door 42.

[0017] The paint booth connection port 43 is connected to the paint booth 10 and functions as an inlet for receiving exhaust gas containing paint mist into the housing 4. The exhaust duct connection port 44 is connected to the exhaust duct D and functions as an outlet for discharging exhaust gas with a reduced paint mist content from the housing 4. With the filter element 2 housed in the housing 4, the filter inlet 21 and the paint booth connection port 43 are aligned, and the filter outlet 23 and the exhaust duct connection port 44 are aligned.

[0018] Floor rollers 45 are provided on the floor surface inside the housing 4. The floor rollers 45 are so-called roller conveyor-like structures that can move the filter element 2 and the tray 3 back and forth within the housing 4. The provision of the floor rollers 45 allows smooth horizontal movement when taking the filter element 2 and the tray 3 in and out.

[0019] In the following explanation, keeping in mind the flow of movement when the filter element 2 enters the housing 4 through the opening 41, the side where the opening 41 and the door 42 are provided will be referred to as the "front" and the side where the exhaust duct connection port 44 is provided will be referred to as the "rear."

[0020] The housing 4 is provided with an abutment member 46 as a first restricting member (a restricting member that can abut against the tray 3) that can restrict movement of the tray 3 on which the filter element 2 is placed when the tray 3 is housed in the housing 4, and a stopper member 47 as a second restricting member (a restricting member that can abut against the filter element 2) that can restrict movement of the filter element 2. Note that, in order for either restricting member to be effective, the filter element 2 and the tray 3 must be housed in a predetermined position in the housing 4. This predetermined position may be, for example, a position where the filter element 2 and the tray 3 are pushed all the way into the housing 4. Both restricting members are provided between the filter element 2 and the door 42 when the filter element 2 and the tray 3 are housed in the predetermined position in the housing 4.

[0021] The abutment member 46 is positioned and sized to allow the abutment piece 33 provided on the end of the tray 3 (the front wall member 32a) to abut against it (FIGS. 4 and 5). FIG. 4 shows a state in which the abutment member 46 is released, and FIG. 5 shows a state in which the abutment member 46 is restricting the tray 3. The abutment piece 33 is pivotally supported by the lever 34 so that it can rotate approximately 90° around the axis X1. When the tray 3 is to be inserted into the housing 4 through the opening 41, the lever 34 is operated to place the abutment piece 33 in the retracted position shown in FIG. 4, where the abutment piece 33 is located above the rotation axis. In this state, the abutment piece 33 does not abut against the abutment member 46, and the tray 3 can be inserted into the housing 4 through the opening 41. After the tray 3 is inserted, the lever 34 is operated to place the abutment piece 33 on the left side of the rotation axis, as shown in FIG. 5, where the abutment piece 33 can abut against the rear side of the abutment member 46. In this state, movement of the tray 3 toward the front side is restricted, which in turn restricts movement of the filter element 2 placed on the tray 3. The abutment pieces 33 and levers 34 are provided one each on both ends of the wall member 32a, and abutment members 46 that abut against these are provided one each on the left and right sides of the tray 3 when viewed from the front.

[0022] The stopper member 47 is supported on the top surface of the housing 4 by hinges 48 and can rotate approximately 90° around the axis X2 (FIGS. 6 and 7). FIG. 6 shows a state in which the restriction by the stopper member 47 is released, and FIG. 7 shows a state in which the stopper member 47 restricts the filter element 2. When the filter element 2 is to be inserted into the housing 4 through the opening 41, the stopper member 47 is rotated upward (retracted) to the state shown in FIG. 6. In this state, the stopper member 47 does not abut against the upper part of the filter element 2, so the filter element 2 can be inserted into the housing 4 through the opening 41. After the filter element 2 has been inserted, when the stopper member 47 extends downward from the top surface of the housing 4 (FIG. 7), the upper part of the filter element 2 can abut against the stopper member 47, and the movement of the filter element 2 toward the front is restricted. A magnet (not shown) is attached to the stopper member 47, and the magnetic force of the magnet can fix the stopper member 47 in a state (retracted position) along the top surface of the housing 4. A pair of a round drop 49a and a metal receiving member 49b is provided as a fixing member 49 for fixing the stopper member 47. One hinge 48 and one fixing member 49 (a pair) are provided on each of the left and right sides of the stopper member 47 when viewed from the front.

[0023] As described above, in the filter device 1 according to this embodiment, the forward movement of the filter element 2 is restricted by the abutment between the filter element 2 and the wall member 32a, the abutment between the abutment piece 33 and the abutment member 46 (the abutment between the tray 3 and the abutment member 46), and the abutment between the filter element 2 and the stopper member 47. This multiplexly prevents the filter element 2 from moving toward the opening 41 inside the housing 4, maintaining a separation between the filter element 2 and the door 42. If the filter element 2 hits the door 42, the door 42 pushed by the filter element 2 will deform, creating a gap between the opening 41 and the door 42, which could cause problems such as leakage of exhaust gas containing paint mist and a reduction in the airflow inside the housing 4. However, in the filter device 1 according to this embodiment, the forward movement of the filter element 2 is restricted, so the opening 41 remains closed by the door 42, preventing these problems from occurring.

[0024] [Transport vehicle] Next, an embodiment of a transport vehicle 5 used to transport the filter element 2 will be described. The transport vehicle 5 according to this embodiment has a mounting surface member 51 and a dolly 52 (FIGS. 8 and 9). The filter element 2 before or after use is placed on a tray 3, and the tray 3 is then placed on the transport vehicle 5, whereby the filter element 2 and the tray 3 can be easily transported.

[0025] The mounting surface member 51 is a plate-shaped member on which the filter element 2 can be mounted. More specifically, the mounting surface member 51 can integrally mount the tray 3 and the filter element 2 placed on the tray 3. In addition, a plurality of ball bearings 51a (an example of a rotating body) are provided on the top surface of the mounting surface member 51.

[0026] The dolly 52 supports the mounting surface member 51 and is configured to be able to travel on the floor surface. Specifically, the dolly 52 has a frame-shaped main body 52a, casters 52b attached to the legs of the main body 52a, and brakes 52c (an example of a travel restriction member) that can restrict the travel of the dolly 52.

[0027] The mounting surface member 51 is supported by the main body portion 52a in a slidable manner. Furthermore, the frame of the main body portion 52a is not provided on either the front or rear sides of the main body portion 52a in the sliding direction, and the mounting surface member 51 is configured to move out of the frame of the main body portion 52a when it slides. This allows the transporter 5 to change between a first state (FIG. 8) in which the mounting surface member 51 is contained within the frame of the carriage 52, and a second state (FIG. 9) in which part of the mounting surface member 51 moves out of the frame of the carriage 52.

[0028] An engagement groove 51b (FIG. 12) is provided in the mounting surface member 51. The engagement groove 51b is provided at a position and with dimensions that allow it to receive the aforementioned contact piece 33, and the relative positions of the tray 3 and the mounting surface member 51 can be fixed by engaging the contact piece 33 with the engagement groove 51b.

[0029] Furthermore, a round stop 51c provided on the mounting surface member 51 and a receiving hole 52d provided on the carriage 52 (main body portion 52a) are provided (FIG. 12) in a positional relationship that allows them to fit together in the second state (FIG. 9). By fitting the round stop 51c into the receiving hole 52d when the mounting surface member 51 is at the end of the sliding range, the transporter 5 can be maintained in the second state. Furthermore, a receiving hole 52e is also provided in a position that allows it to fit into the round stop 51c when the transporter 5 is in the first state (FIG. 8), allowing the transporter 5 to be maintained in the first state.

[0030] The other components of the transport vehicle 5 will be explained together with the method of installing the filter element 2.

[0031] [How to install the filter element] Next, we will explain an embodiment of a method for installing the filter element 2. The installation method according to this embodiment includes a step of housing the tray 3 on which the filter element 2 is placed in the housing 4 (hereinafter referred to as a first step), and a step of restricting the movement of the filter element 2 and the tray 3 (hereinafter referred to as a second step).

[0032] (first step) 10 and 11 show how a new filter element 2 is installed in a housing 4 using a transport vehicle 5. First, the transport vehicle 5 loaded with the filter element 2 and the tray 3 is parked in front of a housing 4 that does not contain a filter element 2. At this time, the transport vehicle 5 is in the first state (FIG. 8). Next, the door 42 is opened, and the stopper member 47 is fixed in a position (retracted position) (FIG. 6) along the top surface of the housing 4. At this time, it is preferable to provide a mark on the floor in front of the housing 4 as a reference for alignment so that the filter element 2 and the tray 3 can be easily aligned in front of the opening 41. It is also preferable to provide a slope (not shown) in front of the housing 4 to guide the tray 3 into the opening 41. If a slope is provided, the caster 52b on the side where the mounting surface member 51 protrudes is supported by the slope, preventing the transport vehicle 5 from tilting when the mounting surface member 51 is slid outward from the dolly 52.

[0033] Next, the mounting surface member 51 is slid to push the filter element 2 and the tray 3 into the housing 4 (FIG. 11). More specifically, a first pushing operation is performed in which the transporter 5 is changed from the first state (FIG. 8) to the second state (FIG. 9) (by sliding the mounting surface member 51) to move the filter element 2, the tray 3, and the mounting surface member 51 together, and a second pushing operation is performed in which, with the transporter 5 in the second state, the filter element 2 and the tray 3 are moved relative to the mounting surface member 51 and pushed into the housing 4. At this time, the brake 52c is activated to prevent the cart 52 from moving unexpectedly.

[0034] Furthermore, because the main body portion 52a is frame-shaped, the user P can enter the frame of the main body portion 52a to perform the work, facilitating the work of pushing the filter element 2 and the tray 3 into the housing 4. When a conventional transporter in which the surface on which the filter element and tray are mounted does not slide is used, this series of work can be difficult for the worker to push the filter element 2 and the tray 3, making the work feel inefficient. However, by using the transporter 5 according to this embodiment, the workability has been improved. In addition, multiple ball bearings 51a are provided on the top surface of the mounting surface member 51, and the tray 3 is supported by the ball bearings 51a, allowing the filter element 2 and the tray 3 to move smoothly.

[0035] When the transport vehicle 5 carrying the filter element 2 and the tray 3 is traveling to transport them, or when the transport vehicle 5 is placed on an elevator or the like and moved vertically along the transport route, it is desirable to prevent the filter element 2 and the tray 3 from moving unexpectedly. For this purpose, the round stop 51c and the receiving hole 52e are engaged to maintain the transport vehicle 5 in the first state until the first pushing operation is performed. Furthermore, the engagement groove 51b of the mounting surface member 51 is engaged with the abutment piece 33 of the tray 3 to fix the relative positions of the tray 3 and the mounting surface member 51 until the second pushing operation is performed. This prevents the tray 3 from falling while the transport vehicle 5 is traveling, etc.

[0036] Considering the functions of the above components, the operation of pushing the filter element 2 and the tray 3 into the housing 4 is as follows. As mentioned above, the stopper member 47 is previously fixed in a position (retracted position) along the top surface of the housing 4 (Figure 6). First, the round notch 51c is raised to disengage from the receiving hole 52e, and then the mounting surface member 51 is slid to change the transport cart 5 from the first state to the second state. After sliding the mounting surface member 51 to the end of its sliding range, the round notch 51c engages with the receiving hole 52d, maintaining the transport cart 5 in the second state. Next, the lever 34 is operated to position the abutment piece 33 above the rotation axis (retracted position) (Figure 4), disengaging from the engagement groove 51b, and then the filter element 2 and the tray 3 are pushed into the housing 4. After confirming that the abutment piece 33 is in the retracted position, the filter element 2 and the tray 3 are further pushed in. After the filter element 2 and the tray 3 are further pushed in until the abutment piece 33 is positioned further back than the abutment member 46, the lever 34 is operated to set the abutment piece 33 in a restricted position sideways to the rotation axis (Figure 5 shows the abutment piece on the left side).

[0037] As described above, the new filter element 2 transported using the transport vehicle 5 is housed in the housing 4 together with the tray 3 by a two-stage pushing operation.

[0038] (Second process) In the second step, the abutment piece 33 and the abutment member 46 come into contact with each other to restrict the forward movement of the tray 3 (FIG. 5), and the stopper member 47 is changed from its retracted position on the top surface of the housing 4 to a state extending downward to restrict the forward movement of the filter element 2 (FIG. 7). Thereafter, the door 42 is closed to complete the installation of the filter element 2.

[0039] (Removing the filter element) To remove the used filter element 2 from the housing 4, the above-described operations for installing the filter element 2 are carried out in reverse order. First, the door 42 is opened, and the restriction of the filter element 2 and the tray 3 by the first and second restricting members is released (this is the reverse of the second step).

[0040] Next, the filter element 2 and the tray 3 are pulled out of the housing 4 and mounted on the mounting surface member 51 (this is the reverse of the second-stage pushing operation). At this time, using a rod-shaped member with a hook at its tip to pull the filter element 2 and the tray 3 out of the housing 4 can improve workability. Furthermore, if the round stop 51c and the receiving hole 52d are engaged to place the transporter 5 in the second state, the mounting surface member 51 can be prevented from moving forward when the filter element 2 and the tray 3 are pulled forward, further improving workability. After the filter element 2 and the tray 3 are placed on the mounting surface member 51, the abutment piece 33 is engaged with the engagement groove 51b.

[0041] Furthermore, after the round drop 51c is raised to release it from the engagement with the receiving hole 52d, the mounting surface member 51 is slid to move the filter element 2, the receiving pan 3, and the mounting surface member 51 together, thereby setting the transporter 5 to the first state (this is the reverse procedure of the first-stage pushing operation). By following the above procedure, the used filter element 2 can be loaded onto the transporter 5. Note that before moving the transporter 5, it is advisable to engage the round drop 51c with the receiving hole 52e to maintain the transporter 5 in the first state.

[0042] Other Embodiments Finally, other embodiments of the present invention will be described. Note that the configurations disclosed in the following embodiments can be applied in combination with the configurations disclosed in other embodiments, as long as no contradiction occurs.

[0043] In the above embodiment, the filter element 2 is a cardboard filter, but in the filter device according to the present invention, the shape and material of the filter element are arbitrary.

[0044] In the above embodiment, the door 42 provided on the housing 4 is a hinged double door. However, the type of door is not limited to the filter device according to the present invention. Therefore, if the door is a hinged door, it may be a single door, and other types of doors such as a sliding door, a folding door, an accordion door, and a shutter may also be used.

[0045] In the above embodiment, the paint booth connection port 43 is provided on the top of the housing 4, and the exhaust duct connection port 44 is provided opposite the door 42. However, in the filter device according to the present invention, the filter inlet 21 and the filter outlet 23 may be arranged in any manner.

[0046] In the above embodiment, an example has been described in which abutment member 46, which serves as a restricting member capable of restricting movement of tray 3, and stopper member 47, which serves as a restricting member capable of restricting movement of filter element 2, are provided. However, in the filter device according to the present invention, it is sufficient that a restricting member capable of restricting movement of at least one of the filter element and tray is provided on the housing; it is not necessary to be able to restrict movement of both the filter element and the tray. However, being able to restrict movement of both is advantageous in terms of maintaining a state in which opening 41 is closed by door 42.

[0047] In the above embodiment, an example has been described in which an abutting member 46 that can abut against the tray 3 is provided. However, when a restricting member that can abut against the tray is provided in the filter device according to the present invention, the abutment may be in any manner. For example, the housing and the tray may each be provided with a mating protrusion and a mating recess that can fit together, so that when the tray is placed in a predetermined position, the fit is completed and movement of the tray is restricted.

[0048] In the above embodiment, the stopper member 47 is supported on the top surface of the housing 4. However, when a restricting member that can come into contact with the filter element is provided in the filter device according to the present invention, the positioning of the restricting member is arbitrary. For example, the restricting member may be provided on the side surface of the housing.

[0049] In the above embodiment, the wall members 32 are provided at positions corresponding to the sides of the rectangular mounting surface 31. However, when wall members are provided on the tray in the filter device according to the present invention, their placement is not limited. For example, in a modified tray 3A shown in FIG. 13, the wall members 32 are provided at positions corresponding to three sides of the rectangular mounting surface 31. In this modified example, when placing the filter element 2 on the tray 3A, the filter element 2 can be placed on the tray 3A without being raised higher than the wall members 32 by passing through a portion where the wall members 32 are not provided. Note that, as shown in FIG. 13, the wall members 32 may be provided on only a portion of one side of the mounting surface 31.

[0050] In the above embodiment, the filter device 1 is described as being equipped with a transport vehicle 5. However, the filter device according to the present invention may or may not have a transport vehicle.

[0051] In the above embodiment, the mounting surface member 51 is slidably supported by the main body portion 52a. However, when a transport vehicle is provided in the filter device according to the present invention, the mounting surface member may be fixed to the cart.

[0052] In the above embodiment, a configuration has been described as an example in which a plurality of ball bearings 51a are provided on the top surface of the mounting surface member 51. However, when a transport vehicle is provided in the filter device according to the present invention, it is optional whether or not a rotating body is provided on the top surface of the mounting surface member 51. Furthermore, when a rotating body is provided, it is not limited to a ball bearing, and may be, for example, a roller.

[0053] In the above embodiment, an example has been described in which the engaging groove 51b of the mounting surface member 51 is engageable with the abutment piece 33 of the tray 3. However, when a transport vehicle is provided in the filter device according to the present invention, it is optional whether or not the mounting surface member and the tray are engageable.

[0054] In the above embodiment, an example has been described in which the brake 52c is provided on the carriage 52. However, when a transport vehicle is provided in the filter device according to the present invention, it is optional whether or not to provide a brake.

[0055] Regarding other configurations, it should be understood that the embodiments disclosed in this specification are illustrative in all respects and that the scope of the present invention is not limited thereby. Those skilled in the art will easily understand that appropriate modifications are possible without departing from the spirit of the present invention. Therefore, other embodiments modified within the spirit of the present invention are naturally included in the scope of the present invention. [Industrial Applicability]

[0056] The present invention can be used as a filter device installed in, for example, a paint booth. [Explanation of symbols]

[0057] 100: Painting equipment 10: Paint booth 1: Filter device 2: Filter element 21: Filter inlet 22: Filter section 23: Filter outlet 3: Saucer 31: Placement surface 32:Wall components 32a: Front wall member 33: Contact piece 34: Lever 4: Housing 41: Opening 42: Door 43: Paint booth connection port 44: Exhaust duct connection port 45: Floor roller 46: Contact member 47: Stopper member 48: Hinge 49: Fixing member 49a: Round Drop 49b: Support hardware 5: Transport vehicle 51: Mounting surface member 51a: Ball Bear 51b: Engagement groove 51c: Round drop 52: Cart 52a: Main body part 52b: Caster 52c: Brake 52d: Receptacle hole 3A: tray (another embodiment)

Claims

1. a housing for accommodating the filter element, the housing having an opening for allowing the filter element to be inserted and removed and a door for closing the opening; A filter device comprising: a tray on which a filter element is placed; a contact member provided on the housing; a contact piece provided on the tray; a stopper member supported on the top surface of the housing, The abutment piece is movable between a retracted position where the tray can be inserted into the housing through the opening, and a restricting position where the abutment piece abuts against the abutment member to restrict movement of the tray when the tray on which the filter element is placed is housed in the housing, A filter device characterized in that the stopper member is movable between a state in which it does not abut the filter element along the top surface of the housing and a state in which it extends downward from the top surface of the housing and can abut the filter element.

2. A transport vehicle capable of transporting the filter element used in the filter device according to claim 1, a mounting surface member on which the filter element can be mounted; a carriage capable of running while supporting the mounting surface member.

3. 3. The transporter according to claim 2, wherein the mounting surface member is slidable relative to the carriage.

4. The transporter according to claim 2, further comprising a rotating body disposed on the top surface of the mounting surface member.

5. 3. The transporter according to claim 2, wherein the mounting surface member and the tray are engageable with each other.

6. 3. The transporter according to claim 2, further comprising a travel restricting member for restricting travel of the carriage.

7. A coating apparatus including a coating booth in which a coating operation is performed and a filter device to which air is sent from the coating booth, The filter device comprises: a housing for accommodating the filter element, the housing having an opening for allowing the filter element to be inserted and removed and a door for closing the opening; a tray on which the filter element is placed; a contact member provided on the housing; a contact piece provided on the tray; a stopper member supported on the top surface of the housing, The abutment piece is movable between a retracted position where the tray can be inserted into the housing through the opening, and a restricting position where the abutment piece abuts against the abutment member to restrict movement of the tray when the tray on which the filter element is placed is housed in the housing, a stopper member that is movable between a state in which it does not contact the filter element along the top surface of the housing and a state in which it extends downward from the top surface of the housing and can contact the filter element.

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