Coupling for coupling two shafts

A coupling for coupling first and second shafts, comprising:

• an annular unit including a plurality of annular metal plates which are put on one another;
• a first group of bolt bores formed through said annular unit;
• a second group of bolt bores formed through said annular unit;
• a first group of bolts and nuts which are incorporated with said first group of bolt bores to fix said annular metal plates;
• a second group of bolts and nuts which are incorporated with said second group of bolt bores to fix said annular metal plates;
• a first yoke having branched arms through which said first shaft is connected to said first group of bolts and nuts;
• a second yoke having branched arms through which said second shaft is connected to said second group of bolts and nuts;
• and
• a stopper structure by which mutually contacting portions of at least two of said annular metal plates in the vicinity of said first and second groups of bolt holes are suppressed from making a relative displacement therebetween, wherein said mutually contacting portions are depressed in one direction so that a depressed part of each contacting portion is intimately pressed into a neighboring contacting portion, thereby to establish a locked engagement therebetween, and wherein an outermost one of said mutually contacting portions is formed with a cut toward which the other contacting portions are depressed.

A coupling for coupling first and second shafts, comprising:

• an annular unit including a plurality of annular metal plates which are put on one another;
• a first group of bolt bores formed through said annular unit;
• a second group of bolt bores formed through said annular unit;
• a first group of bolts and nuts which are incorporated with said first group of bolt bores to fix said annular metal plates;
• a second group of bolts and nuts which are incorporated with said second group of bolt bores to fix said annular metal plates;
• a first yoke which connects said first shaft to said first group of bolts and nuts;
• a second yoke which connects said second shaft to said second group of bolts and nuts;
• and
• stopper means, arranged in the vicinity of each of said first and second groups of bolt holes, by which mutually contacting portions of at least two of said annular metal plates are suppressed from making a relative displacement therebetween, wherein said mutually contacting portions are depressed in one direction so that a depressed part of each contacting portion is intimately pressed into a neighboring contacting portion, thereby to establish a locked engagement therebetween, and wherein an outermost one of said mutually contacting portions is formed with a cut toward which the other contacting portions are depressed.