How to grant NT domain computer accounts access to samba share?

--please no speculations--

Hi experts.

We have a samba share (latest version) on Suse 12. This samba server is a domain member (domain: windows server 2008, please note that the samba server is not a DC) and winbind is up and running. Domain users can access the shares without problems from windows.

What I would like to achieve is that also domain computer accounts (aka computername$) may access that samba share. Until now I could not even find information on if this is even possible without a samba DC.

What I tried so far is:
-put the computer's IP into the hosts allow line of smb.conf (and restart rcsmb)
-fire the command

chown computername\$@domain:domain-users@domain targetfile

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(note the "\" for masking the "$") which succeeds and then ll lists:

rw------- 1 domain\computername$      domain\domain-users 64 Dec  5 18:20 targetfile

So far, so good, but access is still denied.

To test the access, I logged on to "computername" and started a shell using psexec -s -i cmd (which impersonates the system account "computername$") and from that shell I tried to read the targetfile ->access denied.

Is it possible? Did anyone ever do that?

--please no speculations--