| Connecting rod stair climber - Patent 5078390 (2472 words) |
 | The operation of the foot beams of each of the aforementioned patents is similar except that movement of the foot beams of one apparatus is synchronized by a rope and pulley system while a rocker arm and a pair of connecting rods synchronize the foot beams of the other system. |
| Improved beam construction includes channel shaped members having a connecting rod extending through a passage formed intermediate opposite ends of the beam to facilitate connecting the connecting rod to engage the lower surface of the beam for applying a tension force through the connecting rod to the crank arms. |
| Beam assembly 20a on the right side and beam assembly 20b on the left side of the exercise device are of substantially identical construction except for slight variations in the foot supporting pads on the free ends of the beam members. |
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