Operating device and operating system

An operating device comprising:

• a first rotation operation body that is rotated;
• a second rotation operation body that is rotated and provided coaxially with the first rotation operation body;
• a shaft that is coaxially connected with the second rotation operation body;
• a moving body that is provided opposite to the shaft, and is moved in an axial direction in response to rotation of said first rotation operation body;
• an engaging unit that is provided on one of said shaft and said moving body, and has a plurality of concaves or convexes which are aligned at a predetermined interval in a rotation direction of said shaft;
• and
• an engaged unit that is provided on the other of said shaft and said moving body, elastically biased towards said engaging unit, and engaged with said concaves or convexes,
• wherein on said one, a plurality of the engaging units that have the different number of the concaves or convexes respectively are aligned in said axial direction, and
• in response to the movement of said moving body, the engaging unit by which said engaged unit is elastically biased is changed.

An operating device comprising:

• a first rotation operation body that is rotated;
• a second rotation operation body that is rotated and provided coaxially with the first rotation operation body;
• two parts that are provided in said second rotation operation body, so as to be opposite in an axial direction of a rotation shaft of the second rotation operation body;
• an annular moving body, which is inserted through the rotation shaft of said second rotation operation body, and is moved in the axial direction of said rotation shaft between said two parts so that the moving body comes close to one of said two parts and moves away from the other in response to rotation of said first rotation operation body;
• engaging units, which are provided on said two parts, respectively, and have a plurality of concaves or convexes aligned at a predetermined interval in a rotation direction of said second rotation operation body;
• and
• engaged units, which are provided on one side and the other side in said axial direction of said moving body, respectively, and when said moving body approaches one of said two parts, said engaged units being elastically biased towards the approached engaging unit in said one of the two parts and being engaged with said concaves or convexes,
• wherein in the engaging units provided in said two parts, respectively, the numbers of aligned said concaves or convexes differ from each other.

An operating device comprising:

• a first rotation operation body that is rotated;
• a second rotation operation body that is rotated and provided coaxially with the first rotation operation body;
• two parts that are provided in said second rotation operation body, so as to be opposite in an axial direction of a rotation shaft of the second rotation operation body;
• an annular moving body that is inserted through the rotation shaft of said second rotation operation body, and is moved in the axial direction of said rotation shaft between said two parts so that the moving body comes close to one of said two parts and moves away from the other in response to rotation of said first rotation operation body;
• engaging units that are provided on one side and the other side in said axial direction of said moving body, respectively, and have a plurality of concaves or convexes aligned at a predetermined interval in a rotation direction of said second rotation operation body;
• and
• engaged units, which are provided on said two parts, respectively, and when said moving body approaches one of said two parts, said engaged units being elastically biased towards the approached engaging unit in said moving body and being engaged with said concaves or convexes,
• wherein in the engaging units provided on one side and the other side of said moving body, respectively, the numbers of aligned said concaves or convexes differ from each other.