Patent ID: 8661937

Claim:
A cam apparatus comprising: a cam driver; a cam slide which is moved in contact with said cam driver; cam-slide supporting means for supporting said cam slide movably; and a returning mechanism for returning said cam slide to a rear initial position thereof in a moving direction of said cam slide, wherein said cam slide includes: a rectangular parallelepiped cam slide base portion having a pair of sliding supported surfaces each extending in a direction perpendicular to the moving direction of said cam slide; and a tool mounting portion extending from said cam slide base portion, wherein said cam-slide supporting means includes: a cam-slide supporting base which has a front wall portion disposed on a forward side in the moving direction of said cam slide, a rear wall portion disposed on a backward side in the moving direction of said cam slide in face-to-face relation to the front wall portion, a pair of side wall portions extending in the moving direction of said cam slide and connected on a forward side thereof to said front wall portion and on a backward side thereof to said rear wall portion, and a bottom wall portion which is connected to said front wall portion, said rear wall portion, and said pair of side wall portions, respectively, so as to form an accommodating recess for accommodating said cam slide base portion movably in the moving direction; and two pairs of cam-slide supporting plates which are respectively fitted to said pair of side wall portions of said cam-slide supporting base in such a manner as to be respectively aligned in the moving direction of said cam slide, and each of which has a supporting surface opposing a corresponding one of the sliding supported surfaces of said cam slide base portion, wherein, in each of said pairs of cam-slide supporting plates, said cam-slide supporting plate located on the forward side in the moving direction of said cam slide has a moving-direction length shorter than a length in which a moving-direction length of said cam slide base portion accommodated in said accommodating recess is subtracted from a length of said accommodating recess in the moving direction of said cam slide, and wherein, in each of said pairs of cam-slide supporting plates, said cam-slide supporting plate located on the backward side in the moving direction of said cam slide is detachably fitted to said side wall portion by means of a bolt.