EP3156136A1 - Convertible paint booth - Google Patents

Convertible paint booth Download PDF

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Publication number
EP3156136A1
EP3156136A1 EP16382463.4A EP16382463A EP3156136A1 EP 3156136 A1 EP3156136 A1 EP 3156136A1 EP 16382463 A EP16382463 A EP 16382463A EP 3156136 A1 EP3156136 A1 EP 3156136A1
Authority
EP
European Patent Office
Prior art keywords
air
enclosure
openings
ceiling
air inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16382463.4A
Other languages
German (de)
French (fr)
Other versions
EP3156136B1 (en
Inventor
Francisco de Asís RODRÍGUEZ LÓPEZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roisber Servicios SL
Original Assignee
Roisber Servicios SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roisber Servicios SL filed Critical Roisber Servicios SL
Publication of EP3156136A1 publication Critical patent/EP3156136A1/en
Application granted granted Critical
Publication of EP3156136B1 publication Critical patent/EP3156136B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H14/00Buildings for combinations of different purposes not covered by any single one of main groups E04H1/00-E04H13/00 of this subclass, e.g. for double purpose; Buildings of the drive-in type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/60Ventilation arrangements specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/40Construction elements specially adapted therefor, e.g. floors, walls or ceilings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/80Movable spray booths
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/02Small garages, e.g. for one or two cars
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/02Small garages, e.g. for one or two cars
    • E04H6/04Small garages, e.g. for one or two cars wheeled, hinged, foldable, telescopic, swinging or otherwise movable
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/42Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow
    • F26B21/028Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow by air valves, movable baffles or nozzle arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005Treatment of dryer exhaust gases
    • F26B25/007Dust filtering; Exhaust dust filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/43Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12Vehicle bodies, e.g. after being painted

Definitions

  • the present invention is framed within the technical field of industrial work facilities and, more specifically, those used in the automobile sector.
  • a convertible work facility for automobiles which acts as a facility for total vehicle bodywork repairs and may also act as an oven to favour drying following certain operations.
  • the convertible work facility for automobiles makes it possible to perform vehicle bodywork repair operations and, moreover, acts as an oven in those cases wherein drying operations are necessary.
  • the convertible work booth comprises an enclosure designed for the reception of a vehicle (or, at least, a part of a vehicle).
  • the enclosure is defined by at least vertical columns and a ceiling, and may comprise lateral walls, which extend between the vertical columns and the ceiling, and are movable (i.e. they may be completely opened).
  • the booth ceiling comprises air channels for the recirculation of the air inside the booth enclosure and to take in air from the exterior and send it to said enclosure.
  • the air from the ceiling channels is sent to at least one plenum, where it is distributed and from where it descends, thereby generating a laminar air flow that homogeneously descends through the interior of the booth.
  • This generates a healthy work environment in the booth enclosure and all the potential dust generated during the vehicle repair operations is swept along.
  • the residues are swept towards the floor, where they are extracted by the vertical ducts and once again directed towards the ceiling.
  • a plurality of filters are placed in the vertical ducts and the ceiling channels, in order to allow for the purification of the circulating air. Moreover, this air is released into the environment and is not recirculated.
  • a significant advantage of the present invention is that it makes it possible to organise the ventilation by sectors. Thus, if only the front part or the rear part of a vehicle is to be repaired, it is not necessary to ventilate the entire booth. In these cases, the ventilation may be accelerated in only one of the areas, whilst the other area is only slightly ventilated in order to eliminate the dust particles that may originate in the work area and eliminate the gases.
  • these plates equipped with openings, placed in line with the ceiling channels, and shutter sheets that move to control the opening or closing of the openings.
  • these nozzles are formed by superimposed shutters, such that, when the shutter openings are placed in line, passage of air is allowed and, when they slide over one another, passage of air is blocked.
  • the air flow allowed to pass may be regulated.
  • the convertible station may act as an oven, in order to raise the drying temperature.
  • a flap located on the ceiling, facing the outer air inlet is opened. In this way, the previously heated air is recirculated.
  • the drying operation in the oven mode may also be organised by sectors. I.e. we may increase the temperature in the front area or the rear area of the booth depending on the specific needs.
  • the shutters described above are also used for this purpose. This entails a big advantage as compared to traditional ovens, which are heated in an anarchical manner, thereby wasting a lot of energy.
  • the air may be directed through the central ducts (i.e. allowing the passage of air only through the central shutters).
  • the air descends at a greater velocity, thereby generating a hot air jet throughout the booth and along the vehicle; consequently, the exterior thereof is heated without this affecting the rest of the vehicle (interior, underfloor, engine, etc.).
  • This air jet may be targeted on the front or the rear part, which prevents the dispersal of the hot air throughout the booth enclosure (as in the case of traditional ovens), and targeted on the surface that is to be heated.
  • the interior of the booth is also equipped with vertical ducts, with an inner air inlet located on the lower part.
  • the vertical ducts contain filters designed to retain the particles suspended in the air, which are absorbed from the interior of the booth.
  • said filters are placed in a zig-zag arrangement and make it possible to retain the suspended paint.
  • a raised plinth that forms a suction hood joined to the respective vertical duct.
  • all the air supplied by the plenum is forced to descend in a homogeneous manner around the vehicle.
  • the operator may climb the plinth in order to facilitate operations such as painting of the upper part of the vehicle, or rotate it in order to gain access to the low part of the vehicle.
  • the proposed booth does not require civil works, because it is not necessary to have a pit or a grating on the floor in order to allow for the exit of air and because all the equipment in the facility (such as, for example, the blower, the motors used to move the booth when it is movable, the electrical cabinet, etc.) are located on the ceiling of the structure.
  • the proposed convertible work booth may be observed, for example, in Figure 1 .
  • repair operations may be performed on a vehicle, a part of a vehicle or other types of parts that need to be painted, welded, sanded, etc.
  • the work booth itself is converted into an oven in those cases wherein it is necessary to heat the vehicle, a part of the vehicle or the corresponding part following the repair operations.
  • said enclosure (4) is assembled between vertical columns (2) and a ceiling (3) supported on the vertical columns (2).
  • the ceiling (3) has been represented in detail in Figure 2 . As may be observed, it comprises at least two lateral air channels (18) connected to at least one central air channel (19), one outer air inlet (5), one air with gases outlet (11), one blower (6) and one heating element (7).
  • the outer air inlet (5) makes it possible to obtain clean, pure air from outside the booth.
  • the air with gases outlet (11) makes it possible to purify the air that circulates throughout the booth when it is highly mixed with the gases that may have been produced during the repair operations inside the enclosure (4). Prior to releasing the air with gases into the environment, they are forced to pass through several filters in order to prevent damage to the atmosphere.
  • the blower (6) allows for the movement of air through the ceiling channels (3) and the heating element (7) makes it possible to condition the air jet that circulates through said channels.
  • the most important characteristic of the present invention is that both the delivery of outer air to the enclosure (4) and, in those cases when it acts as an oven, the delivery of hot air to the enclosure (4) are performed in a completely controlled manner. This makes it possible to send the air (whether outer air or hot air) to those areas where it is really necessary, thereby allowing for great energy savings.
  • the booth comprises plates equipped with a plurality of openings (9) arranged in line with the central air channel (19) on the ceiling (3), through which the air that circulates through said central air channel (19) exits towards the enclosure (4).
  • a plurality of shutter sheets (10) that may be moved, in order to control the air flow that goes through said openings (9), by covering or opening them in whole or in part.
  • the shutter sheets (10) comprise secondary openings with the same configuration as the openings (9) designed for the passage of air, such that, when the shutter sheets (10) equipped with the secondary openings are placed over the openings (9), the latter are completely open. As the shutter sheet (10) slides, the effective size of the openings (9) is reduced and the air flow that goes through them decreases. Finally, the openings (9) close when they are completely covered by the shutter sheets (10).
  • the convertible work booth comprises at least one plenum (8) placed below the plates equipped with openings (9), which receives the air that exits through the openings (9) towards the enclosure (4), and filters it prior to releasing it in the enclosure (4).
  • Figure 3 represents a profile view of the booth, wherein the plates equipped with openings (9) and the plenum (8) in working position may be observed.
  • the booth also comprises at least two vertical ducts (12), each connected to a lateral air channel (18) through one of the ends, and with an open end that comprises an inner air inlet (13).
  • the inner air inlet (13) is located on the lowest area of the enclosure (4), in order to create a trough in the lower area of the vehicle and thus ensure that the air that exits through the ceiling (3) (through the plenum (8)) vertically travels throughout the entire enclosure (4).
  • the vertical ducts (12) once again drive the air from the interior of the enclosure (4) towards the ceiling channels (3) in order to recirculate it.
  • the interior of the vertical ducts (12) contain a plurality of filters, placed in a zig-zag arrangement, designed to retain the particles that may have been produced during the painting, welding, sanding, etc. operations. Said particles are swept by the air jet that exits the plenum (8), vertically, towards the lower area of the enclosure (4), in order to enter the vertical ducts (12) through the inner air inlet (13).
  • the plenum (8) is attached to the ceiling (3) and is capable of vertical movement.
  • the plenum (8) is supported by cables that may be manipulated by means of a manual or motorised reel, which keep the plenum (8) completely airtight, snug fit against the ceiling (3).
  • the plenum (8) may be lowered to the desired height in order to change the filters.
  • the booth comprises two plena (8) which divide the enclosure (4) into a front section and a rear section.
  • This entails a great advantage, because it makes it possible to release air in the enclosure (4) only in the area where it is necessary.
  • the shutter sheets (10) move independently from one another, and are preferably operated by means of actuators (20), which may be manual or automatic.
  • the latter is placed in the booth enclosure (4) and only those openings (9) that are placed in line with the plenum (8) on the front section are left open. In this way, the air that circulates through the central channel (19) on the ceiling (3) is only released through said openings (9) and neither air nor energy are wasted when ventilating the front section, whereon no work is being performed.
  • Figure 4a represents the plates equipped with openings (9).
  • Figure 4b represents an operating example wherein only some of the openings (9) are open (represented in black, as opposed to the rest of the openings (9), which are open).
  • Figure 5 we may observe the effect of allowing passage of air only through openings (9) in the rear section.
  • Figure 6 represents some openings (9) that are totally covered by the shutter sheets (10) and others that are only partially covered.
  • each of the sections comprises a plurality of shutter sheets (10) designed to guide the air that exits from the ceiling (3) towards the enclosure (4).
  • shutter sheets (10) designed to guide the air that exits from the ceiling (3) towards the enclosure (4).
  • opening or closing the appropriate openings (9) air may be released onto the sides of the enclosure (4) or onto the central area.
  • Figure 3 shows the air exiting only through the central area.
  • This application is especially important in those cases wherein the booth acts as an oven.
  • a defined hot air jet air that has been heated by the heating element (7) in the ceiling channels (3) or has been previously heated and is being recirculated
  • the booth comprises six shutter sheets (10), three of them placed in the front section and three of them in the rear section.
  • the shutter sheets (10) in each section are in line, respectively, with two lateral plates and a central plate, in order to allow for the passage of air through the central area or one of the lateral areas (in the event that repairs are only being performed on one side of the vehicle).
  • the actuators (20) that control the movement of the shutter sheets (10) are located at an intermediate area between the front section and the rear section, and there are three of them, each controlling one shutter sheet (10) in the front section and its corresponding shutter sheet in the rear section.
  • the inner air inlets (13) are placed on the ends of the vertical ducts (12), which are located on the lowest area of the enclosure (4).
  • said inner air inlets (13) are close to the vehicle underfloor. This ensures that the air flow travels vertically throughout the entire exterior of the vehicle.
  • the booth further comprises a collapsible plinth (14) joined to the open end of the vertical ducts (12), in line with the inner air inlet (13).
  • This plinth (14) forms a suction hood that reinforces the air suction effect from the enclosure (4) towards the corresponding vertical duct (12).
  • the operator may climb the plinth (14) in order to facilitate those operations performed on the upper part of the vehicle.
  • it may be rotated in order to raise it, such that the operator may make repairs on the lower part of the vehicle.
  • Said Figure 6 represents a plinth (14) in its habitual position and one that has been rotated to allow the operator to work on the lower part of the vehicle.
  • the convertible work booth comprises at least one movable flap (15), placed in line with the outer air inlet (5), as represented in Figure 5 .
  • Said movable flap (15) moves between a first position, wherein it allows for the passage of air through said outer air inlet (5), and a second position, wherein it blocks the passage of air through the outer air inlet (5).
  • Figure 5 represents the first position. When it moves to the second position, the working air is only recirculated air that is heated to a certain extent with the heating element (7), depending on the specific needs.
  • This embodiment does not exclude the presence of an outer air inlet designed to purify the air that is being recirculated, whilst, at the same time, a part of the air with gases or the air that has already been recirculated for a given period of time is released to the exterior.
  • the convertible work booth makes it possible to introduce the vehicle into the enclosure (4) through any of the sides, the front area or the rear area.
  • the booth comprises lateral walls placed between the vertical columns (2) designed to close the enclosure (4), and said lateral walls (17) are movable.
  • the booth with the lateral walls (17) may be observed.
  • the booth may be installed in a fixed position or may be capable of moving laterally.
  • an operator must take the vehicle into the enclosure (4) and subsequently remove it.
  • the booth is movable, as shown in Figure 9 , it may comprise wheels (16) on the vertical columns (2) which allow for vertical movement, such that it may move along a row of vehicles until all of them are repaired.
  • the vehicle may be introduced into the enclosure (4) through any of the lateral walls (17).

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

Convertible work booth with vertical columns and a ceiling, which comprises at least two lateral air channels connected to at least one central air channel and one outer air inlet (5) . The booth comprises plates equipped with openings placed in line with the central ceiling channel, in order to allow for the passage of air from the channel towards the enclosure. It also comprises a plurality of shutter sheets in line with the openings, to control the air flow that passes through said openings. It also comprises at least one plenum (8) located beneath the plates equipped with openings and two vertical ducts (12), connected to a lateral air channel, which are equipped with an inner air inlet in the lowest area of the enclosure. The vertical ducts (12) may be laterally movable, and the plenum (8) may be vertically movable.

Description

    OBJECT OF THE INVENTION
  • The present invention is framed within the technical field of industrial work facilities and, more specifically, those used in the automobile sector.
  • A convertible work facility for automobiles is disclosed which acts as a facility for total vehicle bodywork repairs and may also act as an oven to favour drying following certain operations.
  • BACKGROUND OF THE INVENTION
  • In the prior art, workstations are known wherein operators perform repair operations on vehicles.
  • The most significant problem associated with this type of workstations is the high amount of resources required, i.e. the associated high energy consumption.
  • In most cases, the repairs to be made to a vehicle do not entail repairing the entire vehicle. However, it is necessary to keep the entire interior of the workstation under suitable conditions for the presence of operators. It is necessary that the latter work in a safe environment for their health.
  • Moreover, in many cases, vehicle repair operations are not considered to be completed until the vehicle is heated or dried. For example, in many cases, once the vehicle has been painted, it is convenient to subject it to heating and drying in order to guarantee a correct result. In the ovens known in the prior art, the energy consumption is very high because the interior is heated in an anarchical manner. Therefore, it is necessary to raise the temperature of the entire interior of the oven in order to achieve good results.
  • DESCRIPTION OF THE INVENTION
  • The convertible work facility for automobiles makes it possible to perform vehicle bodywork repair operations and, moreover, acts as an oven in those cases wherein drying operations are necessary.
  • The convertible work booth comprises an enclosure designed for the reception of a vehicle (or, at least, a part of a vehicle). The enclosure is defined by at least vertical columns and a ceiling, and may comprise lateral walls, which extend between the vertical columns and the ceiling, and are movable (i.e. they may be completely opened). The booth ceiling comprises air channels for the recirculation of the air inside the booth enclosure and to take in air from the exterior and send it to said enclosure.
  • The air from the ceiling channels is sent to at least one plenum, where it is distributed and from where it descends, thereby generating a laminar air flow that homogeneously descends through the interior of the booth. This generates a healthy work environment in the booth enclosure and all the potential dust generated during the vehicle repair operations is swept along. The residues are swept towards the floor, where they are extracted by the vertical ducts and once again directed towards the ceiling. A plurality of filters are placed in the vertical ducts and the ceiling channels, in order to allow for the purification of the circulating air. Moreover, this air is released into the environment and is not recirculated.
  • A significant advantage of the present invention is that it makes it possible to organise the ventilation by sectors. Thus, if only the front part or the rear part of a vehicle is to be repaired, it is not necessary to ventilate the entire booth. In these cases, the ventilation may be accelerated in only one of the areas, whilst the other area is only slightly ventilated in order to eliminate the dust particles that may originate in the work area and eliminate the gases.
  • In order to select different air flow rates by areas inside the enclosure, there are plates equipped with openings, placed in line with the ceiling channels, and shutter sheets that move to control the opening or closing of the openings. Preferably, these nozzles are formed by superimposed shutters, such that, when the shutter openings are placed in line, passage of air is allowed and, when they slide over one another, passage of air is blocked. Moreover, depending upon the relative position between them, the air flow allowed to pass may be regulated.
  • When the vehicle repair operations are completed, the convertible station may act as an oven, in order to raise the drying temperature. To this end, a flap located on the ceiling, facing the outer air inlet, is opened. In this way, the previously heated air is recirculated.
  • The drying operation in the oven mode may also be organised by sectors. I.e. we may increase the temperature in the front area or the rear area of the booth depending on the specific needs. The shutters described above are also used for this purpose. This entails a big advantage as compared to traditional ovens, which are heated in an anarchical manner, thereby wasting a lot of energy.
  • In order to increase the drying efficacy, the air may be directed through the central ducts (i.e. allowing the passage of air only through the central shutters). The air descends at a greater velocity, thereby generating a hot air jet throughout the booth and along the vehicle; consequently, the exterior thereof is heated without this affecting the rest of the vehicle (interior, underfloor, engine, etc.).
  • This air jet may be targeted on the front or the rear part, which prevents the dispersal of the hot air throughout the booth enclosure (as in the case of traditional ovens), and targeted on the surface that is to be heated.
  • The interior of the booth is also equipped with vertical ducts, with an inner air inlet located on the lower part. The vertical ducts contain filters designed to retain the particles suspended in the air, which are absorbed from the interior of the booth. In a preferred embodiment, said filters are placed in a zig-zag arrangement and make it possible to retain the suspended paint.
  • Preferably, in line with said inner air inlet, there is a raised plinth that forms a suction hood joined to the respective vertical duct. This makes it possible to suck in the air from the enclosure very close to the vehicle and create a trough on the lowest part thereof. Thus, all the air supplied by the plenum is forced to descend in a homogeneous manner around the vehicle. The operator may climb the plinth in order to facilitate operations such as painting of the upper part of the vehicle, or rotate it in order to gain access to the low part of the vehicle.
  • The proposed booth does not require civil works, because it is not necessary to have a pit or a grating on the floor in order to allow for the exit of air and because all the equipment in the facility (such as, for example, the blower, the motors used to move the booth when it is movable, the electrical cabinet, etc.) are located on the ceiling of the structure.
  • DESCRIPTION OF THE DRAWINGS
  • In order to supplement the description being made, and to contribute to a better understanding of the characteristics of the invention, according to a preferred embodiment thereof, a set of drawings is attached to said description as an integral part thereof, where the following is represented for illustrative, non-limiting purposes:
    • Figure 1 shows an upper perspective view of the convertible work booth without the lateral walls.
    • Figure 2 shows a view of the convertible work booth ceiling.
    • Figure 3 shows a profile view of the convertible work booth and represents the direction of the air when it exits only through the central area, moving around the vehicle towards the inner air inlet of the vertical ducts.
    • Figure 4a shows a view of the convertible work booth ceiling, where the plates equipped with openings may be observed.
    • Figure 4b shows a view similar to that of Figure 4a with some of the openings open and others completely covered.
    • Figure 5 shows an upper view of the convertible work booth and represents the direction of the air when the ventilation is only activated in the rear section of the enclosure.
    • Figure 6 shows a view of a plate equipped with openings, wherein some are completely closed by a shutter sheet and others are only partially open.
    • Figure 7 shows a profile view of the convertible work booth with the plena shifted downward.
    • Figure 8 shows a lower perspective view of the convertible work booth with the lateral walls.
    • Figure 9 shows a top view of the convertible work booth and a plurality of vehicles located at each of the sides, through which they may enter the enclosure.
    PREFERRED EMBODIMENT OF THE INVENTION
  • With the aid of the aforementioned Figures 1-9, below it is described a preferred embodiment of the present invention.
  • The proposed convertible work booth may be observed, for example, in Figure 1. Inside the booth, repair operations may be performed on a vehicle, a part of a vehicle or other types of parts that need to be painted, welded, sanded, etc. Moreover, the work booth itself is converted into an oven in those cases wherein it is necessary to heat the vehicle, a part of the vehicle or the corresponding part following the repair operations.
  • It is a work booth of the type that comprises an enclosure (4) designed to receive an automobile whereon a plurality of repair operations are to be performed. As may be observed in Figure 1, said enclosure (4) is assembled between vertical columns (2) and a ceiling (3) supported on the vertical columns (2).
  • The ceiling (3) has been represented in detail in Figure 2. As may be observed, it comprises at least two lateral air channels (18) connected to at least one central air channel (19), one outer air inlet (5), one air with gases outlet (11), one blower (6) and one heating element (7).
  • The outer air inlet (5) makes it possible to obtain clean, pure air from outside the booth. The air with gases outlet (11) makes it possible to purify the air that circulates throughout the booth when it is highly mixed with the gases that may have been produced during the repair operations inside the enclosure (4). Prior to releasing the air with gases into the environment, they are forced to pass through several filters in order to prevent damage to the atmosphere.
  • The blower (6) allows for the movement of air through the ceiling channels (3) and the heating element (7) makes it possible to condition the air jet that circulates through said channels.
  • The most important characteristic of the present invention is that both the delivery of outer air to the enclosure (4) and, in those cases when it acts as an oven, the delivery of hot air to the enclosure (4) are performed in a completely controlled manner. This makes it possible to send the air (whether outer air or hot air) to those areas where it is really necessary, thereby allowing for great energy savings.
  • To this end, the booth comprises plates equipped with a plurality of openings (9) arranged in line with the central air channel (19) on the ceiling (3), through which the air that circulates through said central air channel (19) exits towards the enclosure (4). In line with said openings (9), there is a plurality of shutter sheets (10) that may be moved, in order to control the air flow that goes through said openings (9), by covering or opening them in whole or in part.
  • Preferably, the shutter sheets (10) comprise secondary openings with the same configuration as the openings (9) designed for the passage of air, such that, when the shutter sheets (10) equipped with the secondary openings are placed over the openings (9), the latter are completely open. As the shutter sheet (10) slides, the effective size of the openings (9) is reduced and the air flow that goes through them decreases. Finally, the openings (9) close when they are completely covered by the shutter sheets (10).
  • Moreover, the convertible work booth comprises at least one plenum (8) placed below the plates equipped with openings (9), which receives the air that exits through the openings (9) towards the enclosure (4), and filters it prior to releasing it in the enclosure (4). Figure 3 represents a profile view of the booth, wherein the plates equipped with openings (9) and the plenum (8) in working position may be observed.
  • The booth also comprises at least two vertical ducts (12), each connected to a lateral air channel (18) through one of the ends, and with an open end that comprises an inner air inlet (13). The inner air inlet (13) is located on the lowest area of the enclosure (4), in order to create a trough in the lower area of the vehicle and thus ensure that the air that exits through the ceiling (3) (through the plenum (8)) vertically travels throughout the entire enclosure (4). The vertical ducts (12) once again drive the air from the interior of the enclosure (4) towards the ceiling channels (3) in order to recirculate it.
  • Preferably, the interior of the vertical ducts (12) contain a plurality of filters, placed in a zig-zag arrangement, designed to retain the particles that may have been produced during the painting, welding, sanding, etc. operations. Said particles are swept by the air jet that exits the plenum (8), vertically, towards the lower area of the enclosure (4), in order to enter the vertical ducts (12) through the inner air inlet (13).
  • In one embodiment, the plenum (8) is attached to the ceiling (3) and is capable of vertical movement. Preferably, the plenum (8) is supported by cables that may be manipulated by means of a manual or motorised reel, which keep the plenum (8) completely airtight, snug fit against the ceiling (3). The plenum (8) may be lowered to the desired height in order to change the filters.
  • In a preferred embodiment of the invention, the booth comprises two plena (8) which divide the enclosure (4) into a front section and a rear section. This entails a great advantage, because it makes it possible to release air in the enclosure (4) only in the area where it is necessary. In order to allow for this air release control by sections, the shutter sheets (10) move independently from one another, and are preferably operated by means of actuators (20), which may be manual or automatic.
  • For example, in the event that it is necessary to repair the rear part of a vehicle, the latter is placed in the booth enclosure (4) and only those openings (9) that are placed in line with the plenum (8) on the front section are left open. In this way, the air that circulates through the central channel (19) on the ceiling (3) is only released through said openings (9) and neither air nor energy are wasted when ventilating the front section, whereon no work is being performed.
  • Figure 4a represents the plates equipped with openings (9). Figure 4b represents an operating example wherein only some of the openings (9) are open (represented in black, as opposed to the rest of the openings (9), which are open). In Figure 5, we may observe the effect of allowing passage of air only through openings (9) in the rear section. Figure 6 represents some openings (9) that are totally covered by the shutter sheets (10) and others that are only partially covered.
  • Moreover, each of the sections comprises a plurality of shutter sheets (10) designed to guide the air that exits from the ceiling (3) towards the enclosure (4). By opening or closing the appropriate openings (9), air may be released onto the sides of the enclosure (4) or onto the central area. For example, Figure 3 shows the air exiting only through the central area.
  • This application is especially important in those cases wherein the booth acts as an oven. In said cases, a defined hot air jet (air that has been heated by the heating element (7) in the ceiling channels (3) or has been previously heated and is being recirculated) is blown on the automobile.
  • In the embodiment represented in the figures, the booth comprises six shutter sheets (10), three of them placed in the front section and three of them in the rear section. The shutter sheets (10) in each section are in line, respectively, with two lateral plates and a central plate, in order to allow for the passage of air through the central area or one of the lateral areas (in the event that repairs are only being performed on one side of the vehicle). As may be observed in Figures 4a and 4b, the actuators (20) that control the movement of the shutter sheets (10) are located at an intermediate area between the front section and the rear section, and there are three of them, each controlling one shutter sheet (10) in the front section and its corresponding shutter sheet in the rear section.
  • Another advantage of the present invention is that the inner air inlets (13) are placed on the ends of the vertical ducts (12), which are located on the lowest area of the enclosure (4). Preferably, said inner air inlets (13) are close to the vehicle underfloor. This ensures that the air flow travels vertically throughout the entire exterior of the vehicle.
  • In an embodiment such as the one shown in Figure 6, the booth further comprises a collapsible plinth (14) joined to the open end of the vertical ducts (12), in line with the inner air inlet (13). This plinth (14) forms a suction hood that reinforces the air suction effect from the enclosure (4) towards the corresponding vertical duct (12). Moreover, the operator may climb the plinth (14) in order to facilitate those operations performed on the upper part of the vehicle. In addition to being collapsible, it may be rotated in order to raise it, such that the operator may make repairs on the lower part of the vehicle. Said Figure 6 represents a plinth (14) in its habitual position and one that has been rotated to allow the operator to work on the lower part of the vehicle.
  • In order to act as an oven, the convertible work booth comprises at least one movable flap (15), placed in line with the outer air inlet (5), as represented in Figure 5. Said movable flap (15) moves between a first position, wherein it allows for the passage of air through said outer air inlet (5), and a second position, wherein it blocks the passage of air through the outer air inlet (5). Figure 5 represents the first position. When it moves to the second position, the working air is only recirculated air that is heated to a certain extent with the heating element (7), depending on the specific needs. This embodiment does not exclude the presence of an outer air inlet designed to purify the air that is being recirculated, whilst, at the same time, a part of the air with gases or the air that has already been recirculated for a given period of time is released to the exterior.
  • Another noteworthy characteristic of the convertible work booth is that it makes it possible to introduce the vehicle into the enclosure (4) through any of the sides, the front area or the rear area. To this end, the booth comprises lateral walls placed between the vertical columns (2) designed to close the enclosure (4), and said lateral walls (17) are movable. In Figure 8, the booth with the lateral walls (17) may be observed.
  • Moreover, the booth may be installed in a fixed position or may be capable of moving laterally. In the event that the booth is installed in a fixed position, an operator must take the vehicle into the enclosure (4) and subsequently remove it. In the event that the booth is movable, as shown in Figure 9, it may comprise wheels (16) on the vertical columns (2) which allow for vertical movement, such that it may move along a row of vehicles until all of them are repaired. In said Figure 9, we may observe that the vehicle may be introduced into the enclosure (4) through any of the lateral walls (17).

Claims (6)

  1. Convertible work booth of the type that comprises an enclosure (4) defined between:
    - vertical columns (2), and
    - a ceiling (3), supported on the vertical columns (2), which comprises at least:
    - two lateral air channels (18) connected to at least one central air channel (19),
    - one outer air inlet (5),
    - one air with gases outlet (11),
    - one blower (6),
    - one heating element (7),
    and is characterised in that it comprises:
    - plates equipped with a plurality of openings (9) placed in line with the central air channel (19) of the ceiling (3), through which the air that circulates through said central air channel (19) exits towards the enclosure (4),
    - a plurality of shutter sheets (10), placed in line with the openings (9), which are capable of moving to control the air flow that passes through said openings (9), by covering or opening them in whole or in part,
    - at least one plenum (8) placed beneath the plates equipped with openings (9), which receives the air that exits from the openings (9) towards the enclosure (4), filtering it prior to releasing it in the enclosure (4),
    - two vertical ducts (12), each connected through one of its ends to a lateral air channel (18), and with an open end that comprises an inner air inlet (13) and is located on the lowest area of the enclosure (4), configured in such a way so as to guide the air in the interior of the enclosure (4) towards the ceiling (3) channels.
  2. Convertible work booth according to claim 1, wherein the shutter sheets (10) move independently from one another, operated by actuators (20).
  3. Convertible work booth according to claim 1, wherein the plenum (8) is attached to the ceiling (3) by means of cables that allow for the vertical movement thereof.
  4. Convertible work booth according to claim 1, further comprising a collapsible plinth (14) joined to the open end of the vertical ducts (12), in line with the inner air inlet (13).
  5. Convertible work booth according to claim 1, comprising at least one movable flap (15), placed in line with the outer air inlet (5), which moves between a first position, wherein it allows for the passage of air through said outer air inlet (5), and a second position, wherein it blocks the passage of air through the outer air inlet (5).
  6. Convertible work booth according to claim 1, further comprising lateral walls (17) placed between the vertical columns (2), designed to close the enclosure (4), said lateral walls (17) being movable.
EP16382463.4A 2015-10-16 2016-10-11 Convertible paint booth Not-in-force EP3156136B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201531497A ES2609838B1 (en) 2015-10-16 2015-10-16 CONVERTIBLE WORK CABIN

Publications (2)

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EP3156136A1 true EP3156136A1 (en) 2017-04-19
EP3156136B1 EP3156136B1 (en) 2018-07-11

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ID=57570221

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Application Number Title Priority Date Filing Date
EP16382463.4A Not-in-force EP3156136B1 (en) 2015-10-16 2016-10-11 Convertible paint booth

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ES (1) ES2609838B1 (en)

Cited By (5)

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CN108940703A (en) * 2018-08-16 2018-12-07 芜湖鸣人汽车维修服务有限公司 Multi-purpose vehicle(MPV) components spray-painting plant
DE102017121340A1 (en) * 2017-09-14 2019-03-14 Eisenmann Se Plant and method for coating objects
CN111151407A (en) * 2018-11-07 2020-05-15 中储环保设备制造(天津)有限公司 Spraying workshop system of double-layer oil tank and spraying method thereof
CN112604891A (en) * 2019-10-04 2021-04-06 丰田自动车株式会社 Coating room and coating method
CN113550635A (en) * 2021-08-20 2021-10-26 安徽春华智能科技有限公司 High-stability lifting and transverse moving parking equipment

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CN110385223A (en) * 2019-08-08 2019-10-29 王瀛 A kind of environment-friendly type paint spraying apparatus that can spray different colours paint simultaneously

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Publication number Priority date Publication date Assignee Title
DE102017121340A1 (en) * 2017-09-14 2019-03-14 Eisenmann Se Plant and method for coating objects
CN108940703A (en) * 2018-08-16 2018-12-07 芜湖鸣人汽车维修服务有限公司 Multi-purpose vehicle(MPV) components spray-painting plant
CN111151407A (en) * 2018-11-07 2020-05-15 中储环保设备制造(天津)有限公司 Spraying workshop system of double-layer oil tank and spraying method thereof
CN111151407B (en) * 2018-11-07 2022-02-08 中储环保设备制造(天津)有限公司 Spraying workshop system of double-layer oil tank and spraying method thereof
CN112604891A (en) * 2019-10-04 2021-04-06 丰田自动车株式会社 Coating room and coating method
CN112604891B (en) * 2019-10-04 2023-05-09 丰田自动车株式会社 Coating booth and coating method
CN113550635A (en) * 2021-08-20 2021-10-26 安徽春华智能科技有限公司 High-stability lifting and transverse moving parking equipment

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