Painting facility

1. A painting facility comprising:

a painting chamber where a spray painting work is done on a painting subject;

an exhausting chamber where exhaust gas from the painting chamber is drawn in via a floor discharging section of the painting chamber; and

a filter unit configured to collect uncoated paint mist contained in the exhaust gas;

wherein the painting facility further comprises a first connection mechanism connecting the filter unit to the floor discharging section to establish communication between an opening portion of the floor discharging section and an upper face opening portion of the filter unit and a second connection mechanism connecting the filter unit to the exhausting chamber to establish communication between an opening portion of the exhausting chamber and a side face opening portion of the filter unit,

wherein the filter unit includes an upper flange portion along an entire circumference of an upper end portion of the filter unit,

wherein the first connection mechanism includes a seal portion that comes into contact with an entire circumference of an outer face of the upper flange portion, thus preventing leakage of the exhaust gas; and

wherein the seal portion includes an introducing portion for introducing the upper flange portion to the seal portion from a horizontal direction.

2. The painting facility of claim 1 , wherein at the introducing portion, there is provided a partial seal portion which is openable/closable or detachable.

3. The painting facility of claim 1 , wherein:

the seal portion has a planar shape which comprises a trapezoidal shape whose width increases progressively toward the side of the introducing portion; and

the outer face of the upper end portion of the filter unit has a planar shape which comprises a trapezoidal shape in substantial agreement with the planar shape of the seal portion, so that upon introduction of the upper end portion of the filter unit to the seal portion in the horizontal direction, the outer face of the upper end portion of the filter unit is fitted to an inner side of the seal portion.

4. The painting facility of claim 1 , wherein the width of the introducing portion of the seal portion is variable.

5. The painting facility of claim 1 , wherein the first connection mechanism includes a guide member for guiding movement of the filter unit.

6. The painting facility of claim 5 , wherein an end portion of the guide member is bent toward the outer side of a movement path of the filter unit.

7. The painting facility of claim 5 , wherein the filter unit includes a roller member which rotates in contact with the guide member.

8. The painting facility of claim 1 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.

9. The painting facility of claim 2 , wherein:

the seal portion has a planar shape which comprises a trapezoidal shape whose width increases progressively toward the side of the introducing portion; and

the outer face of the upper end portion of the filter unit has a planar shape which comprises a trapezoidal shape in substantial agreement with the planar shape of the seal portion, so that upon introduction of the upper end portion of the filter unit to the seal portion in the horizontal direction, the outer face of the upper end portion of the filter unit is fitted to an inner side of the seal portion.

10. The painting facility of claim 2 , wherein the width of the introducing portion of the seal portion is variable.

11. The painting facility of claim 2 , wherein the first connection mechanism includes a guide member for guiding movement of the filter unit.

12. The painting facility of claim 3 , wherein the first connection mechanism includes a guide member for guiding movement of the filter unit.

13. The painting facility of claim 4 , wherein the first connection mechanism includes a guide member for guiding movement of the filter unit.

14. The painting facility of claim 6 , wherein the filter unit includes a roller member which rotates in contact with the guide member.

15. The painting facility of claim 2 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.

16. The painting facility of claim 3 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.

17. The painting facility of claim 4 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.

18. The painting facility of claim 5 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.

19. The painting facility of claim 6 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.

20. The painting facility of claim 7 , wherein the second connection mechanism includes a coupling member for connecting the exhausting chamber with the filter unit, the coupling member being remotely operable.