| 摘要 |
FIELD: transport. ^ SUBSTANCE: guide frame 1 supports seat 6 arranged on carriage 5 furnished with retainer 41 interacting with one of frame holes 46. Two swing levers 13, 14 with pedals 15, 16 are coupled via bracket 10 to carriage 5. Backrest 8 resting on roller 9 is hinged to seat 6. Seat is varied by varying backrest inclination in locking carriage 5 relative to appropriate hole 46. For rowing, retainer 41 is disengaged from frame 1 to allow pulling steering bar 40 and straightening legs to displace seat 6 on carriage 5. Gear ratio is changed by displacing slide 34 with retainer 35 on bracket 10. Every cable 23, 24 extends from fastener 39 on bracket 10 to run around rollers 36, 37 of slide 34 and rollers 32, 33 of levers 13, 14 to blocks 21, 22 of rear wheel drive 2. ^ EFFECT: seat variation, reduced bicycle length with vertical position of backrest. ^ 2 cl, 5 dwg |
