Abstract: To provide a method for assembling a gas filling device in which its assembly work is simplified by unitizing a housing body and the total number of assembly steps is reduced, thereby achieving high production efficiency. A method for assembling a gas filling device 100 according to the present invention including the steps of: installing a base frame 1; placing a lower unit 10 containing a heat exchanger 13 on the installed base frame 1; positioning an intermediate unit 20 including a display above the lower unit 10; arranging side units 40 on both sides of the lower unit 10 and the intermediate unit 20, the side units 40 housing filling hoses having filling nozzles at their tips; and arranging a top unit 30 containing a flow meter 33 above the intermediate unit 20.

Abstract: To provide a gas filling device with a drainage treatment for rainwater that splashes onto a display panel side when the display panel is opened or closed for maintenance and inspection. A gas filling device 100 according to the present invention in which a display panel 10 having a filling amount indicator 1 therein is laterally opened, the gas filling device 100 including: an intermediate unit 50 disposed in a housing body 101, the intermediate unit 50 combined with the display panel 10; a sealing mechanism disposed in a portion of the intermediate unit 50 that faces an upper edge of the display panel 10; a rain gutter 12 disposed above the filling amount indicator 1, the rain gutter 12 extending in a width direction of the display panel 10.

Abstract: To provide a gas filling device in which its assembly work is simplified by unitizing a housing body and the total number of assembly steps is reduced, thereby achieving high production efficiency. A gas filling device 100 according to the present invention including a lower unit 10 housing a heat exchanger 13 on a base frame 1; an intermediate unit 20 located above the lower unit 10 and housing a display; a top unit 30 located above the intermediate unit 20 and housing a flow meter 33; and side units 40 located on both sides of the lower unit 10 and the intermediate unit 20 and housing filling hoses having filling nozzles at their tips.