Using an opto-isolator to control an AC-coil relay

I've mentioned this project previously, but I wanted to run a particular
schematic by you all to see if there's anything severely wrong with it.

I want to actuate a 120VAC coil relay from HC logic. I'm not using a
solid-state relay because the coil relay is far cheaper for the current
rating, and I'm not using a 5VDC coil because, being connected to mains
as it is, there's no reason the device should be drawing power from the
logic circuit's supply.

This is to be accomplished using an opto-isolator, and a Fairchild
MOC3022 400V triac opto-isolator happens to be handy.

I've never used a triac before, so I'm leery of my kneejerk idea for a
schematic:

MOC3022
.............................
Vcc <---/\/\--.--+ +---.--------------------+
. | | . |
. V emitter ----- . 120V |
. - v ^ . AC ~
. | phototriac ----- . |
. | | . relay coil |
/ON signal <-.--+ +---.-----@@@@@@@@@@-----+
.............................

Does this work, or am I entirely off-base?

Thanks
PSM
.

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