| 摘要 |
FIELD: road vehicles; bus door opening and closing devices. SUBSTANCE: diaphragm turnable two-position pneumatic motor has housing, covers with holes to let working medium pass in and out, diaphragms, support disks, rod and rack drive. Novelty in design of device is that rack is made in form of bushing with flat is furnished with gear cover plate for engagement with turning shaft gear, and rod is set in hole of bushing for movable engagement with bushing and housing. Gear cover plate is installed on bushing by means of split joint, and support disks and bushing are installed with clearance in between in each of extreme positions of rod. EFFECT: minimum cost of production using standard equipment and cheap materials. |
