Apparatus having drive device using electromechanical transducer

An apparatus having a drive device using an electromechanical transducer, said apparatus comprising:

• a base frame;
• an electromechanical transducer one end of which is fixed to the base frame;
• a driving member, one end of which is fixed to said electromechanical transducer and which is supported movably in a direction of a displacement caused in the electromechanical transducer;
• a moving member frictionally coupled with said driving member;
• a driver for driving said electromechanical transducer to cause reciprocal displacements having different velocities,
• wherein the driving member is reciprocally displaced based on the reciprocal displacements having the different velocities caused in said electromechanical transducer whereby the moving member frictionally coupled with the driving member is moved in a predetermined direction;
• and
• a hermetically-sealed vessel where at least said moving member is arranged,
• wherein the moving member arranged in an inner portion of the hermetically-sealed vessel is driven in the predetermined direction via the electromechanical transducer arranged at an outer portion of said hermetically-sealed vessel, and
• wherein the driving member is extended to an inner portion of the hermetically-sealed vessel by penetrating the hermetically-sealed vessel.

An apparatus having a drive device using an electromechanical transducer, said apparatus comprising:

• a base frame;
• an electromechanical transducer one end of which is fixed to the base frame;
• a driving member movable in a direction of a displacement of the electromechanical transducer when the displacement caused in said electromechanical transducer is transmitted to the driving member;
• a moving member frictionally coupled with said driving member;
• a driver for driving said electromechanical transducer to cause reciprocal displacements having different velocities,
• wherein the driving member is reciprocally displaced based on the reciprocal displacements having the different velocities caused in said electromechanical transducer whereby the moving member frictionally coupled with the driving member is moved in a predetermined direction;
• and
• a hermetically-sealed vessel in which at least said moving member and a portion of said driving member are arranged;
• and
• a displacement transmission member provided at a wall face of the hermetically-sealed vessel for transmitting the reciprocal displacements caused by the reciprocal movement of the electromechanical transducer arranged at an outer portion of said hermetically-sealed vessel to the driving member at an inner portion of the hermetically-sealed vessel,
• wherein said driving member drives the moving member at the inner portion of the hermetically-sealed vessel in the predetermined direction based on the reciprocal displacements of the electromechanical transducer transmitted to the driving member at the inner portion of the hermetically-sealed vessel via the displacement transmission member.

An apparatus having a drive device using an electromechanical transducer, said apparatus comprising:

• a base frame;
• an electromechanical transducer, one end of which is fixed to the base frame;
• a driving member, one end of which is fixed to said electromechanical transducer and which is supported movably in a direction of a displacement caused in the electromechanical transducer;
• a moving member frictionally coupled with said driving member;
• and
• a driver for driving said electromechanical transducer to cause reciprocal displacements having different velocities,
• wherein the driving member is reciprocally displaced based on the reciprocal displacements having the different velocities caused in said electromechanical transducer whereby the moving member frictionally coupled with the driving member is moved linearly in a predetermined direction, and
• wherein said electromechanical transducer, said driving member and said moving member are arranged in a shielded environment.

An apparatus comprising:

• an electromechanical transducer;
• a driving member reciprocally driven by a displacement of said electromechanical transducer;
• a moving member frictionally coupled with said driving member and moved by the reciprocal driving of the driving member;
• and,
• a shield structure for shielding said moving member from an outside,
• wherein said electromechanical transducer is placed on outside of said shield structure and the moving manner of said moving member is different from the moving manner of said electromechanical transducer.

An apparatus comprising:

• an electromechanical transducer elongated and contracted by applying a voltage;
• a moving member driven by expanding and contracting said electromechanical transducer;
• and
• a shield structure for shielding said electromechanical transducer and the moving member,
• wherein said moving member frictionally coupled with the driving member is moved linearly in a predetermined direction.