The man was injured by accident on "soft ground" near Okehampton in Devon, police said.
The man was with his 10-year-old daughter the time, officers said. There were no reports she was injured.
It is not known how extensively the man was injured, but Sgt Harry Tangye, of Devon and Cornwall Police, tweeted that the early signs were "good".
An air ambulance was called to the scene after the incident on Tuesday morning.
A man has been injured when he was run over by a JCB forklift handler vehicle in a field.