| 摘要 |
<p>PURPOSE:To enable the application of very simple mechanism for controlling piston stroke by providing an elastic means to work for reducing the inclined rotary angle of a stroke control plate. CONSTITUTION:There is a drive plate 9 provided for driving a piston 11 via a connecting rod 13. Said drive plate 9 is rotatably supported by a stroke control plate 40. A guide plate 44 is fixed to the stroke control plate 40 and guided by a guide plate 46. Also, a pin 62 so retained on a front cover 48 as to be freely rotatable is inserted in the external part of the stroke control plate 40 so as to be freely rotatable. And the external surface of said pin 62 is fitted with a spring for adding moment to the stroke control plate 40 for reducing the inclined rotary angle thereof.</p> |
