| 摘要 |
PROBLEM TO BE SOLVED: To form a two-point type slide driving device driven by a toggle link mechanism, which bends in the left and the right ways, with the minimum parts and to easily realize a high precision. SOLUTION: The device is provided with a left and a right upper toggle links, both of whose first links 13 have the same length, which are turnably held by fixed supporting pins 11 disposed in the left and the right positions on the upper part of a frame 3 of a press 1, a connecting rod 21 whose small end is connected with a connecting link 17 which is held between first supporting pins 14 of both first links 13 and with a central supporting pin 18 of the connecting link 17 when both first links 13 are positioned in parallel with each other, and the large end of the connecting rod 21 is connected with the eccentric part of a crank shaft 20 which has an axis center in the front and the rear directions in the vertical plane of the press, and lower toggle links 23 having the same length in the left and right ways and connecting second supporting pins 16 of second links 15 of the both upper toggle links and the ends of plungers 22 erected on both points of a slide 8.
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