| 摘要 |
A STROLLER INCLUDES TWO RIGHT AND LEFT FRONT LEGS RESPECTIVELY HAVING FRONT WHEELS MOUNTED ON THE LOWER ENDS THEREOF, TWO RIGHT AND LEFT REAR LEGS RESPECTIVELY NOT ONLY HAVING THEIR UPPER PORTIONS SUPPORTED ROTATABLY ON THE SUBSTANTIALLY CENTRAL PORTIONS OF SAID FRONT LEGS BUT ALSO HAVING REAR WHEELS MOUNTED ON THE REAR ENDS THEREOF, TWO RIGHT AND LEFT HAND-PUSH FRAMES,RESPECTIVELY ROTATABLE IN THEIR PERIPHERAL DIRECTION, EACH HAND-PUSH FRAME INCLUDING AN UPPER PORTION CURVED IN AN INVERTED-L SHAPE TO FORM A HORIZONTAL PORTION AND A VERTICALLY XTENDING LOWER PORTION, SAID LOWER PORTION OF SAID HAND-PUSH FRAME BEING INSERTED INTO UPPER AND LOWER HOLDERS RESPECTIVELY FIXED TO THE UPPER END AND SUBSTANTIALLY CENTRAL PORTION OF SAID FRONT LEG AND BEING SUPPORTED BY SAID UPPER AND LOWER HOLDERS IN SUCH A MANNER THAT IT CAN BE SLID IN PARALLEL TO SAID FRONT LEG, A FIRST OPEN/CLOSE LINK FORMED IN AN X SHAPE AND MOUNTED ROTATABLY BETWEEN SAID UPPER HOLDERS OF SAID TWO FRONT LEGS AND THE REAR PORTIONS OF SAID TWO REAR LEGS ,THE INTERSECTING CENTRAL PORTION OF SAID FIRST OPEN/CLOSE LINK BEING SUPPORTED BY A PIN, A SECOND OPEN/CLOSE LINK FORMED IN AN X SHAPE AND MOUNTED ROTATABLY BETWEEN THE LOWER ENDS OF SAID TWO HAND-PUSH FRAMES AND THE SUBSTANTIALLY CENTRAL PORTIONS OF SAID TWO REAR LEGS, THE INTERSECTING CENTRAL PORTION OF SAID SECOND OPEN/CLOSE LINK BEING SUPPORTED BY A PIN, AND A CONNECTING PORTION CONNECTING SAID HORIZONTAL PORTIONS OF SAID TWO HAND-PUSH FRAMES TOGETHER THROUGH THEIR JOINT PORTIONS AND COOPERATING WITH SAID HORIZONTAL PORTIONS OF SAID TWO HAND-PUSH FRAMES IN FORMING A GRIP PORTION. |
