Patent ID: 6904683

Claim:
In a nail clipper containing an upper blade body having an upper cutting edge; a lower blade body having a lower cutting edge opposed to the upper cutting edge; a supporting shaft inserted to the blade bodies near the cutting edges respectively, a lower end portion of the supporting shaft being engaged with the lower blade body, while an upper end portion of the supporting shaft protruding upward through the upper blade body; a lever having a pair of supporting arms; the upper end portion of the supporting shaft being inserted on the upper blade body to a bearing recess defined between the supporting arms of the lever; a first supporting section provided in the supporting arms; and a second supporting section provided at the upper end portion of the supporting shaft; the first and second supporting sections being linked to each other; the upper cutting edge and the lower cutting edge being brought into press contact with each other by pressing the upper blade body with the lever against resilience of the upper and lower blade bodies, wherein the improvement which comprises: a pair of bosses opposing each other, formed as one of the group consisting of the first supporting section of the lever and as the second supporting section of the supporting shaft, and a pair of grooves formed as the other of the group consisting of the first supporting section of the lever and the second supporting section of the supporting shaft, with which the bosses are engaged respectively; the grooves each having a mouth portion through which the boss is engaged and disengaged, a guiding portion capable of pivotally supporting the boss, and a connecting portion connecting the mouth portion and the guiding portion to each other; the groove having a pair of side wall surfaces opposing each other in the mouth portion, connecting portion, and guiding portion, and also a bottom surface connecting the side wall surfaces to each other.