Device for connecting a fuel nozzle to a filling hose

A device for connecting a refueling nozzle with a filling hose, comprising:

• a female coupling member affixed to a refueling nozzle;
• a male coupling member affixed to a filling hose and receivable in said female coupling member;
• a detent ring mounted fixedly on one of said members and engageable in a recess formed in the other of said coupling members upon insertion of said male coupling member in said female coupling member for retaining said coupling members in a coupled state until said device is subjected to a tension force resulting from departure of a refueling vehicle with said nozzle in its refueling port from a refueling station provided with said nozzle and said hose;
• decoupling means in said recess for disengaging said members to release said nozzle from said hose upon applying of the tension force to said device;
• means including a space for providing a limited angular play between said male and female coupling members after said male member is received in said female coupling member, said space permit ting angular disalignment of said members in said coupling state upon applying a disaligning torque effecting angular disalignment of said members;
• a restoring spring in said space braced between said coupling members and coaxially aligning said male coupling member in said female coupling member upon discontinuance of said disaligning torque;
• and
• levering means on said members cooperating with said disengaging means for levering said detent ring out of said recess and said male coupling member out of said female coupling member upon said disaligning torque becomes sufficient to overcome a restoring force of said spring.