Input apparatus.

摘要

An input apparatus capable of concurrently accommodating itself to any external signal from a different hydraulic control system or the like. The apparatus includes electrical load sensors (48) each arranged on a push rod (14) or block (18) for detecting the amount of operation of a control lever (12) to generate an electrical signal corresponding to the amount of operation of the control lever. Also, an input apparatus which is capable of concurrently responding to both a signal generated by itself and an external signal fed thereto is provided. The apparatus includes a pilot section (148; 160; 162,164) for exerting force which permits a shuttle (128) to be moved against coiled compression springs (114, 118). The pilot section is fed with a signal from an external hydraulic control system. <IMAGE>